80842720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:201

約数の個数: 192

約数和(自身を含む): 239500800

約数和(自身を除く): 158658080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 29, 32, 35, 38, 40, 56, 58, 70, 76, 80, 95, 112, 116, 131, 133, 140, 145, 152, 160, 190, 203, 224, 232, 262, 266, 280, 290, 304, 380, 406, 464, 524, 532, 551, 560, 580, 608, 655, 665, 760, 812, 917, 928, 1015, 1048, 1064, 1102, 1120, 1160, 1310, 1330, 1520, 1624, 1834, 2030, 2096, 2128, 2204, 2320, 2489, 2620, 2660, 2755, 3040, 3248, 3668, 3799, 3857, 4060, 4192, 4256, 4408, 4585, 4640, 4978, 5240, 5320, 5510, 6496, 7336, 7598, 7714, 8120, 8816, 9170, 9956, 10480, 10640, 11020, 12445, 14672, 15196, 15428, 16240, 17423, 17632, 18340, 18995, 19285, 19912, 20960, 21280, 22040, 24890, 26593, 29344, 30392, 30856, 32480, 34846, 36680, 37990, 38570, 39824, 44080, 49780, 53186, 60784, 61712, 69692, 72181, 73360, 75980, 77140, 79648, 87115, 88160, 99560, 106372, 121568, 123424, 132965, 139384, 144362, 146720, 151960, 154280, 174230, 199120, 212744, 265930, 278768, 288724, 303920, 308560, 348460, 360905, 398240, 425488, 505267, 531860, 557536, 577448, 607840, 617120, 696920, 721810, 850976, 1010534, 1063720, 1154896, 1393840, 1443620, 2021068, 2127440, 2309792, 2526335, 2787680, 2887240, 4042136, 4254880, 5052670, 5774480, 8084272, 10105340, 11548960, 16168544, 20210680, 40421360, 80842720]

約数ペア:

[(1, 80842720), (2, 40421360), (4, 20210680), (5, 16168544), (7, 11548960), (8, 10105340), (10, 8084272), (14, 5774480), (16, 5052670), (19, 4254880), (20, 4042136), (28, 2887240), (29, 2787680), (32, 2526335), (35, 2309792), (38, 2127440), (40, 2021068), (56, 1443620), (58, 1393840), (70, 1154896), (76, 1063720), (80, 1010534), (95, 850976), (112, 721810), (116, 696920), (131, 617120), (133, 607840), (140, 577448), (145, 557536), (152, 531860), (160, 505267), (190, 425488), (203, 398240), (224, 360905), (232, 348460), (262, 308560), (266, 303920), (280, 288724), (290, 278768), (304, 265930), (380, 212744), (406, 199120), (464, 174230), (524, 154280), (532, 151960), (551, 146720), (560, 144362), (580, 139384), (608, 132965), (655, 123424), (665, 121568), (760, 106372), (812, 99560), (917, 88160), (928, 87115), (1015, 79648), (1048, 77140), (1064, 75980), (1102, 73360), (1120, 72181), (1160, 69692), (1310, 61712), (1330, 60784), (1520, 53186), (1624, 49780), (1834, 44080), (2030, 39824), (2096, 38570), (2128, 37990), (2204, 36680), (2320, 34846), (2489, 32480), (2620, 30856), (2660, 30392), (2755, 29344), (3040, 26593), (3248, 24890), (3668, 22040), (3799, 21280), (3857, 20960), (4060, 19912), (4192, 19285), (4256, 18995), (4408, 18340), (4585, 17632), (4640, 17423), (4978, 16240), (5240, 15428), (5320, 15196), (5510, 14672), (6496, 12445), (7336, 11020), (7598, 10640), (7714, 10480), (8120, 9956), (8816, 9170)]