27512500

素因数分解:

$2^2\times 5^5\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 72

約数和(自身を含む): 62995968

約数和(自身を除く): 35483468

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 71, 100, 124, 125, 142, 155, 250, 284, 310, 355, 500, 620, 625, 710, 775, 1250, 1420, 1550, 1775, 2201, 2500, 3100, 3125, 3550, 3875, 4402, 6250, 7100, 7750, 8804, 8875, 11005, 12500, 15500, 17750, 19375, 22010, 35500, 38750, 44020, 44375, 55025, 77500, 88750, 96875, 110050, 177500, 193750, 220100, 221875, 275125, 387500, 443750, 550250, 887500, 1100500, 1375625, 2751250, 5502500, 6878125, 13756250, 27512500]

約数ペア:

[(1, 27512500), (2, 13756250), (4, 6878125), (5, 5502500), (10, 2751250), (20, 1375625), (25, 1100500), (31, 887500), (50, 550250), (62, 443750), (71, 387500), (100, 275125), (124, 221875), (125, 220100), (142, 193750), (155, 177500), (250, 110050), (284, 96875), (310, 88750), (355, 77500), (500, 55025), (620, 44375), (625, 44020), (710, 38750), (775, 35500), (1250, 22010), (1420, 19375), (1550, 17750), (1775, 15500), (2201, 12500), (2500, 11005), (3100, 8875), (3125, 8804), (3550, 7750), (3875, 7100), (4402, 6250)]