291213992

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{521}}^1\times {\mathrm{641}}^1$

素因数の和:1277

約数の個数: 32

約数和(自身を含む): 552954600

約数和(自身を除く): 261740608

約数列:

[1, 2, 4, 8, 109, 218, 436, 521, 641, 872, 1042, 1282, 2084, 2564, 4168, 5128, 56789, 69869, 113578, 139738, 227156, 279476, 333961, 454312, 558952, 667922, 1335844, 2671688, 36401749, 72803498, 145606996, 291213992]

約数ペア:

[(1, 291213992), (2, 145606996), (4, 72803498), (8, 36401749), (109, 2671688), (218, 1335844), (436, 667922), (521, 558952), (641, 454312), (872, 333961), (1042, 279476), (1282, 227156), (2084, 139738), (2564, 113578), (4168, 69869), (5128, 56789)]