20556400

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{3023}}^1$

素因数の和:3058

約数の個数: 60

約数和(自身を含む): 52309152

約数和(自身を除く): 31752752

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1700, 3023, 3400, 6046, 6800, 12092, 15115, 24184, 30230, 48368, 51391, 60460, 75575, 102782, 120920, 151150, 205564, 241840, 256955, 302300, 411128, 513910, 604600, 822256, 1027820, 1209200, 1284775, 2055640, 2569550, 4111280, 5139100, 10278200, 20556400]

約数ペア:

[(1, 20556400), (2, 10278200), (4, 5139100), (5, 4111280), (8, 2569550), (10, 2055640), (16, 1284775), (17, 1209200), (20, 1027820), (25, 822256), (34, 604600), (40, 513910), (50, 411128), (68, 302300), (80, 256955), (85, 241840), (100, 205564), (136, 151150), (170, 120920), (200, 102782), (272, 75575), (340, 60460), (400, 51391), (425, 48368), (680, 30230), (850, 24184), (1360, 15115), (1700, 12092), (3023, 6800), (3400, 6046)]