28999360

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6971}}^1$

素因数の和:7001

約数の個数: 56

約数和(自身を含む): 74377296

約数和(自身を除く): 45377936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 6971, 13942, 27884, 34855, 55768, 69710, 90623, 111536, 139420, 181246, 223072, 278840, 362492, 446144, 453115, 557680, 724984, 906230, 1115360, 1449968, 1812460, 2230720, 2899936, 3624920, 5799872, 7249840, 14499680, 28999360]

約数ペア:

[(1, 28999360), (2, 14499680), (4, 7249840), (5, 5799872), (8, 3624920), (10, 2899936), (13, 2230720), (16, 1812460), (20, 1449968), (26, 1115360), (32, 906230), (40, 724984), (52, 557680), (64, 453115), (65, 446144), (80, 362492), (104, 278840), (130, 223072), (160, 181246), (208, 139420), (260, 111536), (320, 90623), (416, 69710), (520, 55768), (832, 34855), (1040, 27884), (2080, 13942), (4160, 6971)]