16862500

素因数分解:

$2^2\times 5^5\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 39372480

約数和(自身を除く): 22509980

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 71, 76, 95, 100, 125, 142, 190, 250, 284, 355, 380, 475, 500, 625, 710, 950, 1250, 1349, 1420, 1775, 1900, 2375, 2500, 2698, 3125, 3550, 4750, 5396, 6250, 6745, 7100, 8875, 9500, 11875, 12500, 13490, 17750, 23750, 26980, 33725, 35500, 44375, 47500, 59375, 67450, 88750, 118750, 134900, 168625, 177500, 221875, 237500, 337250, 443750, 674500, 843125, 887500, 1686250, 3372500, 4215625, 8431250, 16862500]

約数ペア:

[(1, 16862500), (2, 8431250), (4, 4215625), (5, 3372500), (10, 1686250), (19, 887500), (20, 843125), (25, 674500), (38, 443750), (50, 337250), (71, 237500), (76, 221875), (95, 177500), (100, 168625), (125, 134900), (142, 118750), (190, 88750), (250, 67450), (284, 59375), (355, 47500), (380, 44375), (475, 35500), (500, 33725), (625, 26980), (710, 23750), (950, 17750), (1250, 13490), (1349, 12500), (1420, 11875), (1775, 9500), (1900, 8875), (2375, 7100), (2500, 6745), (2698, 6250), (3125, 5396), (3550, 4750)]