1818488980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{9923}}^1$

素因数の和:9974

約数の個数: 144

約数和(自身を含む): 5131740096

約数和(自身を除く): 3313251116

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 28, 34, 35, 44, 49, 55, 68, 70, 77, 85, 98, 110, 119, 140, 154, 170, 187, 196, 220, 238, 245, 308, 340, 374, 385, 476, 490, 539, 595, 748, 770, 833, 935, 980, 1078, 1190, 1309, 1540, 1666, 1870, 2156, 2380, 2618, 2695, 3332, 3740, 4165, 5236, 5390, 6545, 8330, 9163, 9923, 10780, 13090, 16660, 18326, 19846, 26180, 36652, 39692, 45815, 49615, 69461, 91630, 99230, 109153, 138922, 168691, 183260, 198460, 218306, 277844, 337382, 347305, 436612, 486227, 545765, 674764, 694610, 764071, 843455, 972454, 1091530, 1180837, 1389220, 1528142, 1686910, 1855601, 1944908, 2183060, 2361674, 2431135, 3056284, 3373820, 3711202, 3820355, 4723348, 4862270, 5348497, 5904185, 7422404, 7640710, 8265859, 9278005, 9724540, 10696994, 11808370, 12989207, 15281420, 16531718, 18556010, 21393988, 23616740, 25978414, 26742485, 33063436, 37112020, 41329295, 51956828, 53484970, 64946035, 82658590, 90924449, 106969940, 129892070, 165317180, 181848898, 259784140, 363697796, 454622245, 909244490, 1818488980]

約数ペア:

[(1, 1818488980), (2, 909244490), (4, 454622245), (5, 363697796), (7, 259784140), (10, 181848898), (11, 165317180), (14, 129892070), (17, 106969940), (20, 90924449), (22, 82658590), (28, 64946035), (34, 53484970), (35, 51956828), (44, 41329295), (49, 37112020), (55, 33063436), (68, 26742485), (70, 25978414), (77, 23616740), (85, 21393988), (98, 18556010), (110, 16531718), (119, 15281420), (140, 12989207), (154, 11808370), (170, 10696994), (187, 9724540), (196, 9278005), (220, 8265859), (238, 7640710), (245, 7422404), (308, 5904185), (340, 5348497), (374, 4862270), (385, 4723348), (476, 3820355), (490, 3711202), (539, 3373820), (595, 3056284), (748, 2431135), (770, 2361674), (833, 2183060), (935, 1944908), (980, 1855601), (1078, 1686910), (1190, 1528142), (1309, 1389220), (1540, 1180837), (1666, 1091530), (1870, 972454), (2156, 843455), (2380, 764071), (2618, 694610), (2695, 674764), (3332, 545765), (3740, 486227), (4165, 436612), (5236, 347305), (5390, 337382), (6545, 277844), (8330, 218306), (9163, 198460), (9923, 183260), (10780, 168691), (13090, 138922), (16660, 109153), (18326, 99230), (19846, 91630), (26180, 69461), (36652, 49615), (39692, 45815)]