80488540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21521}}^1$

素因数の和:21558

約数の個数: 48

約数和(自身を含む): 195247584

約数和(自身を除く): 114759044

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 21521, 43042, 86084, 107605, 215210, 236731, 365857, 430420, 473462, 731714, 946924, 1183655, 1463428, 1829285, 2367310, 3658570, 4024427, 4734620, 7317140, 8048854, 16097708, 20122135, 40244270, 80488540]

約数ペア:

[(1, 80488540), (2, 40244270), (4, 20122135), (5, 16097708), (10, 8048854), (11, 7317140), (17, 4734620), (20, 4024427), (22, 3658570), (34, 2367310), (44, 1829285), (55, 1463428), (68, 1183655), (85, 946924), (110, 731714), (170, 473462), (187, 430420), (220, 365857), (340, 236731), (374, 215210), (748, 107605), (935, 86084), (1870, 43042), (3740, 21521)]