31803940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:146

約数の個数: 144

約数和(自身を含む): 86873472

約数和(自身を除く): 55069532

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 23, 28, 34, 35, 46, 49, 68, 70, 83, 85, 92, 98, 115, 119, 140, 161, 166, 170, 196, 230, 238, 245, 322, 332, 340, 391, 415, 460, 476, 490, 581, 595, 644, 782, 805, 830, 833, 980, 1127, 1162, 1190, 1411, 1564, 1610, 1660, 1666, 1909, 1955, 2254, 2324, 2380, 2737, 2822, 2905, 3220, 3332, 3818, 3910, 4067, 4165, 4508, 5474, 5635, 5644, 5810, 7055, 7636, 7820, 8134, 8330, 9545, 9877, 10948, 11270, 11620, 13363, 13685, 14110, 16268, 16660, 19090, 19159, 19754, 20335, 22540, 26726, 27370, 28220, 32453, 38180, 38318, 39508, 40670, 49385, 53452, 54740, 64906, 66815, 69139, 76636, 81340, 93541, 95795, 98770, 129812, 133630, 138278, 162265, 187082, 191590, 197540, 227171, 267260, 276556, 324530, 345695, 374164, 383180, 454342, 467705, 649060, 691390, 908684, 935410, 1135855, 1382780, 1590197, 1870820, 2271710, 3180394, 4543420, 6360788, 7950985, 15901970, 31803940]

約数ペア:

[(1, 31803940), (2, 15901970), (4, 7950985), (5, 6360788), (7, 4543420), (10, 3180394), (14, 2271710), (17, 1870820), (20, 1590197), (23, 1382780), (28, 1135855), (34, 935410), (35, 908684), (46, 691390), (49, 649060), (68, 467705), (70, 454342), (83, 383180), (85, 374164), (92, 345695), (98, 324530), (115, 276556), (119, 267260), (140, 227171), (161, 197540), (166, 191590), (170, 187082), (196, 162265), (230, 138278), (238, 133630), (245, 129812), (322, 98770), (332, 95795), (340, 93541), (391, 81340), (415, 76636), (460, 69139), (476, 66815), (490, 64906), (581, 54740), (595, 53452), (644, 49385), (782, 40670), (805, 39508), (830, 38318), (833, 38180), (980, 32453), (1127, 28220), (1162, 27370), (1190, 26726), (1411, 22540), (1564, 20335), (1610, 19754), (1660, 19159), (1666, 19090), (1909, 16660), (1955, 16268), (2254, 14110), (2324, 13685), (2380, 13363), (2737, 11620), (2822, 11270), (2905, 10948), (3220, 9877), (3332, 9545), (3818, 8330), (3910, 8134), (4067, 7820), (4165, 7636), (4508, 7055), (5474, 5810), (5635, 5644)]