131576640

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{811}}^1$

素因数の和:857

約数の個数: 168

約数和(自身を含む): 452920608

約数和(自身を除く): 321343968

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 169, 192, 195, 208, 240, 260, 312, 320, 338, 390, 416, 480, 507, 520, 624, 676, 780, 811, 832, 845, 960, 1014, 1040, 1248, 1352, 1560, 1622, 1690, 2028, 2080, 2433, 2496, 2535, 2704, 3120, 3244, 3380, 4055, 4056, 4160, 4866, 5070, 5408, 6240, 6488, 6760, 8110, 8112, 9732, 10140, 10543, 10816, 12165, 12480, 12976, 13520, 16220, 16224, 19464, 20280, 21086, 24330, 25952, 27040, 31629, 32440, 32448, 38928, 40560, 42172, 48660, 51904, 52715, 54080, 63258, 64880, 77856, 81120, 84344, 97320, 105430, 126516, 129760, 137059, 155712, 158145, 162240, 168688, 194640, 210860, 253032, 259520, 274118, 316290, 337376, 389280, 411177, 421720, 506064, 548236, 632580, 674752, 685295, 778560, 822354, 843440, 1012128, 1096472, 1265160, 1370590, 1644708, 1686880, 2024256, 2055885, 2192944, 2530320, 2741180, 3289416, 3373760, 4111770, 4385888, 5060640, 5482360, 6578832, 8223540, 8771776, 10121280, 10964720, 13157664, 16447080, 21929440, 26315328, 32894160, 43858880, 65788320, 131576640]

約数ペア:

[(1, 131576640), (2, 65788320), (3, 43858880), (4, 32894160), (5, 26315328), (6, 21929440), (8, 16447080), (10, 13157664), (12, 10964720), (13, 10121280), (15, 8771776), (16, 8223540), (20, 6578832), (24, 5482360), (26, 5060640), (30, 4385888), (32, 4111770), (39, 3373760), (40, 3289416), (48, 2741180), (52, 2530320), (60, 2192944), (64, 2055885), (65, 2024256), (78, 1686880), (80, 1644708), (96, 1370590), (104, 1265160), (120, 1096472), (130, 1012128), (156, 843440), (160, 822354), (169, 778560), (192, 685295), (195, 674752), (208, 632580), (240, 548236), (260, 506064), (312, 421720), (320, 411177), (338, 389280), (390, 337376), (416, 316290), (480, 274118), (507, 259520), (520, 253032), (624, 210860), (676, 194640), (780, 168688), (811, 162240), (832, 158145), (845, 155712), (960, 137059), (1014, 129760), (1040, 126516), (1248, 105430), (1352, 97320), (1560, 84344), (1622, 81120), (1690, 77856), (2028, 64880), (2080, 63258), (2433, 54080), (2496, 52715), (2535, 51904), (2704, 48660), (3120, 42172), (3244, 40560), (3380, 38928), (4055, 32448), (4056, 32440), (4160, 31629), (4866, 27040), (5070, 25952), (5408, 24330), (6240, 21086), (6488, 20280), (6760, 19464), (8110, 16224), (8112, 16220), (9732, 13520), (10140, 12976), (10543, 12480), (10816, 12165)]