20063200

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{809}}^1$

素因数の和:860

約数の個数: 72

約数和(自身を含む): 50621760

約数和(自身を除く): 30558560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 124, 155, 160, 200, 248, 310, 400, 496, 620, 775, 800, 809, 992, 1240, 1550, 1618, 2480, 3100, 3236, 4045, 4960, 6200, 6472, 8090, 12400, 12944, 16180, 20225, 24800, 25079, 25888, 32360, 40450, 50158, 64720, 80900, 100316, 125395, 129440, 161800, 200632, 250790, 323600, 401264, 501580, 626975, 647200, 802528, 1003160, 1253950, 2006320, 2507900, 4012640, 5015800, 10031600, 20063200]

約数ペア:

[(1, 20063200), (2, 10031600), (4, 5015800), (5, 4012640), (8, 2507900), (10, 2006320), (16, 1253950), (20, 1003160), (25, 802528), (31, 647200), (32, 626975), (40, 501580), (50, 401264), (62, 323600), (80, 250790), (100, 200632), (124, 161800), (155, 129440), (160, 125395), (200, 100316), (248, 80900), (310, 64720), (400, 50158), (496, 40450), (620, 32360), (775, 25888), (800, 25079), (809, 24800), (992, 20225), (1240, 16180), (1550, 12944), (1618, 12400), (2480, 8090), (3100, 6472), (3236, 6200), (4045, 4960)]