261496320

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:536

約数の個数: 160

約数和(自身を含む): 848517120

約数和(自身を除く): 587020800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 79, 80, 96, 120, 128, 158, 160, 192, 237, 240, 256, 316, 320, 384, 395, 431, 474, 480, 512, 632, 640, 768, 790, 862, 948, 960, 1185, 1264, 1280, 1293, 1536, 1580, 1724, 1896, 1920, 2155, 2370, 2528, 2560, 2586, 3160, 3448, 3792, 3840, 4310, 4740, 5056, 5172, 6320, 6465, 6896, 7584, 7680, 8620, 9480, 10112, 10344, 12640, 12930, 13792, 15168, 17240, 18960, 20224, 20688, 25280, 25860, 27584, 30336, 34049, 34480, 37920, 40448, 41376, 50560, 51720, 55168, 60672, 68098, 68960, 75840, 82752, 101120, 102147, 103440, 110336, 121344, 136196, 137920, 151680, 165504, 170245, 202240, 204294, 206880, 220672, 272392, 275840, 303360, 331008, 340490, 408588, 413760, 510735, 544784, 551680, 606720, 662016, 680980, 817176, 827520, 1021470, 1089568, 1103360, 1361960, 1634352, 1655040, 2042940, 2179136, 2723920, 3268704, 3310080, 4085880, 4358272, 5447840, 6537408, 8171760, 8716544, 10895680, 13074816, 16343520, 17433088, 21791360, 26149632, 32687040, 43582720, 52299264, 65374080, 87165440, 130748160, 261496320]

約数ペア:

[(1, 261496320), (2, 130748160), (3, 87165440), (4, 65374080), (5, 52299264), (6, 43582720), (8, 32687040), (10, 26149632), (12, 21791360), (15, 17433088), (16, 16343520), (20, 13074816), (24, 10895680), (30, 8716544), (32, 8171760), (40, 6537408), (48, 5447840), (60, 4358272), (64, 4085880), (79, 3310080), (80, 3268704), (96, 2723920), (120, 2179136), (128, 2042940), (158, 1655040), (160, 1634352), (192, 1361960), (237, 1103360), (240, 1089568), (256, 1021470), (316, 827520), (320, 817176), (384, 680980), (395, 662016), (431, 606720), (474, 551680), (480, 544784), (512, 510735), (632, 413760), (640, 408588), (768, 340490), (790, 331008), (862, 303360), (948, 275840), (960, 272392), (1185, 220672), (1264, 206880), (1280, 204294), (1293, 202240), (1536, 170245), (1580, 165504), (1724, 151680), (1896, 137920), (1920, 136196), (2155, 121344), (2370, 110336), (2528, 103440), (2560, 102147), (2586, 101120), (3160, 82752), (3448, 75840), (3792, 68960), (3840, 68098), (4310, 60672), (4740, 55168), (5056, 51720), (5172, 50560), (6320, 41376), (6465, 40448), (6896, 37920), (7584, 34480), (7680, 34049), (8620, 30336), (9480, 27584), (10112, 25860), (10344, 25280), (12640, 20688), (12930, 20224), (13792, 18960), (15168, 17240)]