21710000

素因数分解:

$2^4\times 5^4\times {\mathrm{13}}^1\times {\mathrm{167}}^1$

素因数の和:208

約数の個数: 100

約数和(自身を含む): 56944272

約数和(自身を除く): 35234272

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 167, 200, 208, 250, 260, 325, 334, 400, 500, 520, 625, 650, 668, 835, 1000, 1040, 1250, 1300, 1336, 1625, 1670, 2000, 2171, 2500, 2600, 2672, 3250, 3340, 4175, 4342, 5000, 5200, 6500, 6680, 8125, 8350, 8684, 10000, 10855, 13000, 13360, 16250, 16700, 17368, 20875, 21710, 26000, 32500, 33400, 34736, 41750, 43420, 54275, 65000, 66800, 83500, 86840, 104375, 108550, 130000, 167000, 173680, 208750, 217100, 271375, 334000, 417500, 434200, 542750, 835000, 868400, 1085500, 1356875, 1670000, 2171000, 2713750, 4342000, 5427500, 10855000, 21710000]

約数ペア:

[(1, 21710000), (2, 10855000), (4, 5427500), (5, 4342000), (8, 2713750), (10, 2171000), (13, 1670000), (16, 1356875), (20, 1085500), (25, 868400), (26, 835000), (40, 542750), (50, 434200), (52, 417500), (65, 334000), (80, 271375), (100, 217100), (104, 208750), (125, 173680), (130, 167000), (167, 130000), (200, 108550), (208, 104375), (250, 86840), (260, 83500), (325, 66800), (334, 65000), (400, 54275), (500, 43420), (520, 41750), (625, 34736), (650, 33400), (668, 32500), (835, 26000), (1000, 21710), (1040, 20875), (1250, 17368), (1300, 16700), (1336, 16250), (1625, 13360), (1670, 13000), (2000, 10855), (2171, 10000), (2500, 8684), (2600, 8350), (2672, 8125), (3250, 6680), (3340, 6500), (4175, 5200), (4342, 5000)]