18889550

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:413

約数の個数: 48

約数和(自身を含む): 37845792

約数和(自身を除く): 18956242

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 71, 85, 142, 170, 313, 355, 425, 626, 710, 850, 1207, 1565, 1775, 2414, 3130, 3550, 5321, 6035, 7825, 10642, 12070, 15650, 22223, 26605, 30175, 44446, 53210, 60350, 111115, 133025, 222230, 266050, 377791, 555575, 755582, 1111150, 1888955, 3777910, 9444775, 18889550]

約数ペア:

[(1, 18889550), (2, 9444775), (5, 3777910), (10, 1888955), (17, 1111150), (25, 755582), (34, 555575), (50, 377791), (71, 266050), (85, 222230), (142, 133025), (170, 111115), (313, 60350), (355, 53210), (425, 44446), (626, 30175), (710, 26605), (850, 22223), (1207, 15650), (1565, 12070), (1775, 10642), (2414, 7825), (3130, 6035), (3550, 5321)]