80999360

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19471}}^1$

素因数の和:19501

約数の個数: 56

約数和(自身を含む): 207727296

約数和(自身を除く): 126727936

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, 19471, 38942, 77884, 97355, 155768, 194710, 253123, 311536, 389420, 506246, 623072, 778840, 1012492, 1246144, 1265615, 1557680, 2024984, 2531230, 3115360, 4049968, 5062460, 6230720, 8099936, 10124920, 16199872, 20249840, 40499680, 80999360]

約数ペア:

[(1, 80999360), (2, 40499680), (4, 20249840), (5, 16199872), (8, 10124920), (10, 8099936), (13, 6230720), (16, 5062460), (20, 4049968), (26, 3115360), (32, 2531230), (40, 2024984), (52, 1557680), (64, 1265615), (65, 1246144), (80, 1012492), (104, 778840), (130, 623072), (160, 506246), (208, 389420), (260, 311536), (320, 253123), (416, 194710), (520, 155768), (832, 97355), (1040, 77884), (2080, 38942), (4160, 19471)]