81277250

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 163088640

約数和(自身を除く): 81811390

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 71, 95, 125, 142, 190, 241, 250, 355, 475, 482, 710, 950, 1205, 1349, 1775, 2375, 2410, 2698, 3550, 4579, 4750, 6025, 6745, 8875, 9158, 12050, 13490, 17111, 17750, 22895, 30125, 33725, 34222, 45790, 60250, 67450, 85555, 114475, 168625, 171110, 228950, 325109, 337250, 427775, 572375, 650218, 855550, 1144750, 1625545, 2138875, 3251090, 4277750, 8127725, 16255450, 40638625, 81277250]

約数ペア:

[(1, 81277250), (2, 40638625), (5, 16255450), (10, 8127725), (19, 4277750), (25, 3251090), (38, 2138875), (50, 1625545), (71, 1144750), (95, 855550), (125, 650218), (142, 572375), (190, 427775), (241, 337250), (250, 325109), (355, 228950), (475, 171110), (482, 168625), (710, 114475), (950, 85555), (1205, 67450), (1349, 60250), (1775, 45790), (2375, 34222), (2410, 33725), (2698, 30125), (3550, 22895), (4579, 17750), (4750, 17111), (6025, 13490), (6745, 12050), (8875, 9158)]