15778750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{971}}^1$

素因数の和:1006

約数の個数: 40

約数和(自身を含む): 31883544

約数和(自身を除く): 16104794

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 971, 1250, 1625, 1942, 3250, 4855, 8125, 9710, 12623, 16250, 24275, 25246, 48550, 63115, 121375, 126230, 242750, 315575, 606875, 631150, 1213750, 1577875, 3155750, 7889375, 15778750]

約数ペア:

[(1, 15778750), (2, 7889375), (5, 3155750), (10, 1577875), (13, 1213750), (25, 631150), (26, 606875), (50, 315575), (65, 242750), (125, 126230), (130, 121375), (250, 63115), (325, 48550), (625, 25246), (650, 24275), (971, 16250), (1250, 12623), (1625, 9710), (1942, 8125), (3250, 4855)]