166456420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{1283}}^1$

素因数の和:1804

約数の個数: 48

約数和(自身を含む): 377496000

約数和(自身を除く): 211039580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 499, 998, 1283, 1996, 2495, 2566, 4990, 5132, 6415, 6487, 9980, 12830, 12974, 16679, 25660, 25948, 32435, 33358, 64870, 66716, 83395, 129740, 166790, 333580, 640217, 1280434, 2560868, 3201085, 6402170, 8322821, 12804340, 16645642, 33291284, 41614105, 83228210, 166456420]

約数ペア:

[(1, 166456420), (2, 83228210), (4, 41614105), (5, 33291284), (10, 16645642), (13, 12804340), (20, 8322821), (26, 6402170), (52, 3201085), (65, 2560868), (130, 1280434), (260, 640217), (499, 333580), (998, 166790), (1283, 129740), (1996, 83395), (2495, 66716), (2566, 64870), (4990, 33358), (5132, 32435), (6415, 25948), (6487, 25660), (9980, 16679), (12830, 12974)]