90012020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{1733}}^1$

素因数の和:1809

約数の個数: 72

約数和(自身を含む): 224164584

約数和(自身を除く): 134152564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 53, 70, 98, 106, 140, 196, 212, 245, 265, 371, 490, 530, 742, 980, 1060, 1484, 1733, 1855, 2597, 3466, 3710, 5194, 6932, 7420, 8665, 10388, 12131, 12985, 17330, 24262, 25970, 34660, 48524, 51940, 60655, 84917, 91849, 121310, 169834, 183698, 242620, 339668, 367396, 424585, 459245, 642943, 849170, 918490, 1285886, 1698340, 1836980, 2571772, 3214715, 4500601, 6429430, 9001202, 12858860, 18002404, 22503005, 45006010, 90012020]

約数ペア:

[(1, 90012020), (2, 45006010), (4, 22503005), (5, 18002404), (7, 12858860), (10, 9001202), (14, 6429430), (20, 4500601), (28, 3214715), (35, 2571772), (49, 1836980), (53, 1698340), (70, 1285886), (98, 918490), (106, 849170), (140, 642943), (196, 459245), (212, 424585), (245, 367396), (265, 339668), (371, 242620), (490, 183698), (530, 169834), (742, 121310), (980, 91849), (1060, 84917), (1484, 60655), (1733, 51940), (1855, 48524), (2597, 34660), (3466, 25970), (3710, 24262), (5194, 17330), (6932, 12985), (7420, 12131), (8665, 10388)]