31472740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1$

素因数の和:341

約数の個数: 96

約数和(自身を含む): 78462720

約数和(自身を除く): 46989980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 23, 26, 38, 46, 52, 65, 76, 92, 95, 115, 130, 190, 230, 247, 260, 277, 299, 380, 437, 460, 494, 554, 598, 874, 988, 1108, 1196, 1235, 1385, 1495, 1748, 2185, 2470, 2770, 2990, 3601, 4370, 4940, 5263, 5540, 5681, 5980, 6371, 7202, 8740, 10526, 11362, 12742, 14404, 18005, 21052, 22724, 25484, 26315, 28405, 31855, 36010, 52630, 56810, 63710, 68419, 72020, 82823, 105260, 113620, 121049, 127420, 136838, 165646, 242098, 273676, 331292, 342095, 414115, 484196, 605245, 684190, 828230, 1210490, 1368380, 1573637, 1656460, 2420980, 3147274, 6294548, 7868185, 15736370, 31472740]

約数ペア:

[(1, 31472740), (2, 15736370), (4, 7868185), (5, 6294548), (10, 3147274), (13, 2420980), (19, 1656460), (20, 1573637), (23, 1368380), (26, 1210490), (38, 828230), (46, 684190), (52, 605245), (65, 484196), (76, 414115), (92, 342095), (95, 331292), (115, 273676), (130, 242098), (190, 165646), (230, 136838), (247, 127420), (260, 121049), (277, 113620), (299, 105260), (380, 82823), (437, 72020), (460, 68419), (494, 63710), (554, 56810), (598, 52630), (874, 36010), (988, 31855), (1108, 28405), (1196, 26315), (1235, 25484), (1385, 22724), (1495, 21052), (1748, 18005), (2185, 14404), (2470, 12742), (2770, 11362), (2990, 10526), (3601, 8740), (4370, 7202), (4940, 6371), (5263, 5980), (5540, 5681)]