68781250

素因数分解:

$2^1\times 5^6\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:134

約数の個数: 56

約数和(自身を含む): 134998272

約数和(自身を除く): 66217022

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 71, 125, 142, 155, 250, 310, 355, 625, 710, 775, 1250, 1550, 1775, 2201, 3125, 3550, 3875, 4402, 6250, 7750, 8875, 11005, 15625, 17750, 19375, 22010, 31250, 38750, 44375, 55025, 88750, 96875, 110050, 193750, 221875, 275125, 443750, 484375, 550250, 968750, 1109375, 1375625, 2218750, 2751250, 6878125, 13756250, 34390625, 68781250]

約数ペア:

[(1, 68781250), (2, 34390625), (5, 13756250), (10, 6878125), (25, 2751250), (31, 2218750), (50, 1375625), (62, 1109375), (71, 968750), (125, 550250), (142, 484375), (155, 443750), (250, 275125), (310, 221875), (355, 193750), (625, 110050), (710, 96875), (775, 88750), (1250, 55025), (1550, 44375), (1775, 38750), (2201, 31250), (3125, 22010), (3550, 19375), (3875, 17750), (4402, 15625), (6250, 11005), (7750, 8875)]