646907520

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{379}}^1$

素因数の和:535

約数の個数: 256

約数和(自身を含む): 2381414400

約数和(自身を除く): 1734506880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 127, 128, 140, 160, 168, 192, 210, 224, 240, 254, 280, 320, 336, 379, 381, 384, 420, 448, 480, 508, 560, 635, 640, 672, 758, 762, 840, 889, 896, 960, 1016, 1120, 1137, 1270, 1344, 1516, 1524, 1680, 1778, 1895, 1905, 1920, 2032, 2240, 2274, 2540, 2653, 2667, 2688, 3032, 3048, 3360, 3556, 3790, 3810, 4064, 4445, 4480, 4548, 5080, 5306, 5334, 5685, 6064, 6096, 6720, 7112, 7580, 7620, 7959, 8128, 8890, 9096, 10160, 10612, 10668, 11370, 12128, 12192, 13265, 13335, 13440, 14224, 15160, 15240, 15918, 16256, 17780, 18192, 20320, 21224, 21336, 22740, 24256, 24384, 26530, 26670, 28448, 30320, 30480, 31836, 35560, 36384, 39795, 40640, 42448, 42672, 45480, 48133, 48512, 48768, 53060, 53340, 56896, 60640, 60960, 63672, 71120, 72768, 79590, 81280, 84896, 85344, 90960, 96266, 106120, 106680, 113792, 121280, 121920, 127344, 142240, 144399, 145536, 159180, 169792, 170688, 181920, 192532, 212240, 213360, 240665, 242560, 243840, 254688, 284480, 288798, 318360, 336931, 339584, 341376, 363840, 385064, 424480, 426720, 481330, 509376, 568960, 577596, 636720, 673862, 721995, 727680, 770128, 848960, 853440, 962660, 1010793, 1018752, 1155192, 1273440, 1347724, 1443990, 1540256, 1684655, 1697920, 1706880, 1925320, 2021586, 2310384, 2546880, 2695448, 2887980, 3080512, 3369310, 3850640, 4043172, 4620768, 5053965, 5093760, 5390896, 5775960, 6161024, 6738620, 7701280, 8086344, 9241536, 10107930, 10781792, 11551920, 13477240, 15402560, 16172688, 18483072, 20215860, 21563584, 23103840, 26954480, 30805120, 32345376, 40431720, 43127168, 46207680, 53908960, 64690752, 80863440, 92415360, 107817920, 129381504, 161726880, 215635840, 323453760, 646907520]

約数ペア:

[(1, 646907520), (2, 323453760), (3, 215635840), (4, 161726880), (5, 129381504), (6, 107817920), (7, 92415360), (8, 80863440), (10, 64690752), (12, 53908960), (14, 46207680), (15, 43127168), (16, 40431720), (20, 32345376), (21, 30805120), (24, 26954480), (28, 23103840), (30, 21563584), (32, 20215860), (35, 18483072), (40, 16172688), (42, 15402560), (48, 13477240), (56, 11551920), (60, 10781792), (64, 10107930), (70, 9241536), (80, 8086344), (84, 7701280), (96, 6738620), (105, 6161024), (112, 5775960), (120, 5390896), (127, 5093760), (128, 5053965), (140, 4620768), (160, 4043172), (168, 3850640), (192, 3369310), (210, 3080512), (224, 2887980), (240, 2695448), (254, 2546880), (280, 2310384), (320, 2021586), (336, 1925320), (379, 1706880), (381, 1697920), (384, 1684655), (420, 1540256), (448, 1443990), (480, 1347724), (508, 1273440), (560, 1155192), (635, 1018752), (640, 1010793), (672, 962660), (758, 853440), (762, 848960), (840, 770128), (889, 727680), (896, 721995), (960, 673862), (1016, 636720), (1120, 577596), (1137, 568960), (1270, 509376), (1344, 481330), (1516, 426720), (1524, 424480), (1680, 385064), (1778, 363840), (1895, 341376), (1905, 339584), (1920, 336931), (2032, 318360), (2240, 288798), (2274, 284480), (2540, 254688), (2653, 243840), (2667, 242560), (2688, 240665), (3032, 213360), (3048, 212240), (3360, 192532), (3556, 181920), (3790, 170688), (3810, 169792), (4064, 159180), (4445, 145536), (4480, 144399), (4548, 142240), (5080, 127344), (5306, 121920), (5334, 121280), (5685, 113792), (6064, 106680), (6096, 106120), (6720, 96266), (7112, 90960), (7580, 85344), (7620, 84896), (7959, 81280), (8128, 79590), (8890, 72768), (9096, 71120), (10160, 63672), (10612, 60960), (10668, 60640), (11370, 56896), (12128, 53340), (12192, 53060), (13265, 48768), (13335, 48512), (13440, 48133), (14224, 45480), (15160, 42672), (15240, 42448), (15918, 40640), (16256, 39795), (17780, 36384), (18192, 35560), (20320, 31836), (21224, 30480), (21336, 30320), (22740, 28448), (24256, 26670), (24384, 26530)]