20349750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{43}}^1\times {\mathrm{631}}^1$

素因数の和:694

約数の個数: 64

約数和(自身を含む): 52056576

約数和(自身を除く): 31706826

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 43, 50, 75, 86, 125, 129, 150, 215, 250, 258, 375, 430, 631, 645, 750, 1075, 1262, 1290, 1893, 2150, 3155, 3225, 3786, 5375, 6310, 6450, 9465, 10750, 15775, 16125, 18930, 27133, 31550, 32250, 47325, 54266, 78875, 81399, 94650, 135665, 157750, 162798, 236625, 271330, 406995, 473250, 678325, 813990, 1356650, 2034975, 3391625, 4069950, 6783250, 10174875, 20349750]

約数ペア:

[(1, 20349750), (2, 10174875), (3, 6783250), (5, 4069950), (6, 3391625), (10, 2034975), (15, 1356650), (25, 813990), (30, 678325), (43, 473250), (50, 406995), (75, 271330), (86, 236625), (125, 162798), (129, 157750), (150, 135665), (215, 94650), (250, 81399), (258, 78875), (375, 54266), (430, 47325), (631, 32250), (645, 31550), (750, 27133), (1075, 18930), (1262, 16125), (1290, 15775), (1893, 10750), (2150, 9465), (3155, 6450), (3225, 6310), (3786, 5375)]