31971940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1597}}^1$

素因数の和:1637

約数の個数: 96

約数和(自身を含む): 90203904

約数和(自身を除く): 58231964

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 455, 572, 715, 770, 910, 1001, 1430, 1540, 1597, 1820, 2002, 2860, 3194, 4004, 5005, 6388, 7985, 10010, 11179, 15970, 17567, 20020, 20761, 22358, 31940, 35134, 41522, 44716, 55895, 70268, 83044, 87835, 103805, 111790, 122969, 145327, 175670, 207610, 223580, 228371, 245938, 290654, 351340, 415220, 456742, 491876, 581308, 614845, 726635, 913484, 1141855, 1229690, 1453270, 1598597, 2283710, 2459380, 2906540, 3197194, 4567420, 6394388, 7992985, 15985970, 31971940]

約数ペア:

[(1, 31971940), (2, 15985970), (4, 7992985), (5, 6394388), (7, 4567420), (10, 3197194), (11, 2906540), (13, 2459380), (14, 2283710), (20, 1598597), (22, 1453270), (26, 1229690), (28, 1141855), (35, 913484), (44, 726635), (52, 614845), (55, 581308), (65, 491876), (70, 456742), (77, 415220), (91, 351340), (110, 290654), (130, 245938), (140, 228371), (143, 223580), (154, 207610), (182, 175670), (220, 145327), (260, 122969), (286, 111790), (308, 103805), (364, 87835), (385, 83044), (455, 70268), (572, 55895), (715, 44716), (770, 41522), (910, 35134), (1001, 31940), (1430, 22358), (1540, 20761), (1597, 20020), (1820, 17567), (2002, 15970), (2860, 11179), (3194, 10010), (4004, 7985), (5005, 6388)]