31176860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{991}}^1$

素因数の和:1035

約数の個数: 72

約数和(自身を含む): 77578368

約数和(自身を除く): 46401508

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 121, 130, 143, 220, 242, 260, 286, 484, 572, 605, 715, 991, 1210, 1430, 1573, 1982, 2420, 2860, 3146, 3964, 4955, 6292, 7865, 9910, 10901, 12883, 15730, 19820, 21802, 25766, 31460, 43604, 51532, 54505, 64415, 109010, 119911, 128830, 141713, 218020, 239822, 257660, 283426, 479644, 566852, 599555, 708565, 1199110, 1417130, 1558843, 2398220, 2834260, 3117686, 6235372, 7794215, 15588430, 31176860]

約数ペア:

[(1, 31176860), (2, 15588430), (4, 7794215), (5, 6235372), (10, 3117686), (11, 2834260), (13, 2398220), (20, 1558843), (22, 1417130), (26, 1199110), (44, 708565), (52, 599555), (55, 566852), (65, 479644), (110, 283426), (121, 257660), (130, 239822), (143, 218020), (220, 141713), (242, 128830), (260, 119911), (286, 109010), (484, 64415), (572, 54505), (605, 51532), (715, 43604), (991, 31460), (1210, 25766), (1430, 21802), (1573, 19820), (1982, 15730), (2420, 12883), (2860, 10901), (3146, 9910), (3964, 7865), (4955, 6292)]