31293240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:333

約数の個数: 128

約数和(自身を含む): 103749120

約数和(自身を除く): 72455880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 151, 157, 165, 220, 264, 302, 314, 330, 440, 453, 471, 604, 628, 660, 755, 785, 906, 942, 1208, 1256, 1320, 1510, 1570, 1661, 1727, 1812, 1884, 2265, 2355, 3020, 3140, 3322, 3454, 3624, 3768, 4530, 4710, 4983, 5181, 6040, 6280, 6644, 6908, 8305, 8635, 9060, 9420, 9966, 10362, 13288, 13816, 16610, 17270, 18120, 18840, 19932, 20724, 23707, 24915, 25905, 33220, 34540, 39864, 41448, 47414, 49830, 51810, 66440, 69080, 71121, 94828, 99660, 103620, 118535, 142242, 189656, 199320, 207240, 237070, 260777, 284484, 355605, 474140, 521554, 568968, 711210, 782331, 948280, 1043108, 1303885, 1422420, 1564662, 2086216, 2607770, 2844840, 3129324, 3911655, 5215540, 6258648, 7823310, 10431080, 15646620, 31293240]

約数ペア:

[(1, 31293240), (2, 15646620), (3, 10431080), (4, 7823310), (5, 6258648), (6, 5215540), (8, 3911655), (10, 3129324), (11, 2844840), (12, 2607770), (15, 2086216), (20, 1564662), (22, 1422420), (24, 1303885), (30, 1043108), (33, 948280), (40, 782331), (44, 711210), (55, 568968), (60, 521554), (66, 474140), (88, 355605), (110, 284484), (120, 260777), (132, 237070), (151, 207240), (157, 199320), (165, 189656), (220, 142242), (264, 118535), (302, 103620), (314, 99660), (330, 94828), (440, 71121), (453, 69080), (471, 66440), (604, 51810), (628, 49830), (660, 47414), (755, 41448), (785, 39864), (906, 34540), (942, 33220), (1208, 25905), (1256, 24915), (1320, 23707), (1510, 20724), (1570, 19932), (1661, 18840), (1727, 18120), (1812, 17270), (1884, 16610), (2265, 13816), (2355, 13288), (3020, 10362), (3140, 9966), (3322, 9420), (3454, 9060), (3624, 8635), (3768, 8305), (4530, 6908), (4710, 6644), (4983, 6280), (5181, 6040)]