68281250

素因数分解:

$2^1\times 5^7\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:79

約数の個数: 64

約数和(自身を含む): 140624640

約数和(自身を除く): 72343390

約数列:

[1, 2, 5, 10, 19, 23, 25, 38, 46, 50, 95, 115, 125, 190, 230, 250, 437, 475, 575, 625, 874, 950, 1150, 1250, 2185, 2375, 2875, 3125, 4370, 4750, 5750, 6250, 10925, 11875, 14375, 15625, 21850, 23750, 28750, 31250, 54625, 59375, 71875, 78125, 109250, 118750, 143750, 156250, 273125, 296875, 359375, 546250, 593750, 718750, 1365625, 1484375, 1796875, 2731250, 2968750, 3593750, 6828125, 13656250, 34140625, 68281250]

約数ペア:

[(1, 68281250), (2, 34140625), (5, 13656250), (10, 6828125), (19, 3593750), (23, 2968750), (25, 2731250), (38, 1796875), (46, 1484375), (50, 1365625), (95, 718750), (115, 593750), (125, 546250), (190, 359375), (230, 296875), (250, 273125), (437, 156250), (475, 143750), (575, 118750), (625, 109250), (874, 78125), (950, 71875), (1150, 59375), (1250, 54625), (2185, 31250), (2375, 28750), (2875, 23750), (3125, 21850), (4370, 15625), (4750, 14375), (5750, 11875), (6250, 10925)]