15945705

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 29035344

約数和(自身を除く): 13089639

約数列:

[1, 3, 5, 9, 15, 37, 45, 61, 111, 157, 183, 185, 305, 333, 471, 549, 555, 785, 915, 1413, 1665, 2257, 2355, 2745, 5809, 6771, 7065, 9577, 11285, 17427, 20313, 28731, 29045, 33855, 47885, 52281, 86193, 87135, 101565, 143655, 261405, 354349, 430965, 1063047, 1771745, 3189141, 5315235, 15945705]

約数ペア:

[(1, 15945705), (3, 5315235), (5, 3189141), (9, 1771745), (15, 1063047), (37, 430965), (45, 354349), (61, 261405), (111, 143655), (157, 101565), (183, 87135), (185, 86193), (305, 52281), (333, 47885), (471, 33855), (549, 29045), (555, 28731), (785, 20313), (915, 17427), (1413, 11285), (1665, 9577), (2257, 7065), (2355, 6771), (2745, 5809)]