1642019920

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{306347}}^1$

素因数の和:306427

約数の個数: 40

約数和(自身を含む): 3874689504

約数和(自身を除く): 2232669584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 306347, 612694, 1225388, 1531735, 2450776, 3063470, 4901552, 6126940, 12253880, 20525249, 24507760, 41050498, 82100996, 102626245, 164201992, 205252490, 328403984, 410504980, 821009960, 1642019920]

約数ペア:

[(1, 1642019920), (2, 821009960), (4, 410504980), (5, 328403984), (8, 205252490), (10, 164201992), (16, 102626245), (20, 82100996), (40, 41050498), (67, 24507760), (80, 20525249), (134, 12253880), (268, 6126940), (335, 4901552), (536, 3063470), (670, 2450776), (1072, 1531735), (1340, 1225388), (2680, 612694), (5360, 306347)]