981905625

素因数分解:

$3^3\times 5^4\times {\mathrm{31}}^1\times {\mathrm{1877}}^1$

素因数の和:1937

約数の個数: 80

約数和(自身を含む): 1877399040

約数和(自身を除く): 895493415

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 93, 125, 135, 155, 225, 279, 375, 465, 625, 675, 775, 837, 1125, 1395, 1875, 1877, 2325, 3375, 3875, 4185, 5625, 5631, 6975, 9385, 11625, 16875, 16893, 19375, 20925, 28155, 34875, 46925, 50679, 58125, 58187, 84465, 104625, 140775, 174375, 174561, 234625, 253395, 290935, 422325, 523125, 523683, 703875, 872805, 1173125, 1266975, 1454675, 1571049, 2111625, 2618415, 3519375, 4364025, 6334875, 7273375, 7855245, 10558125, 13092075, 21820125, 31674375, 36366875, 39276225, 65460375, 109100625, 196381125, 327301875, 981905625]

約数ペア:

[(1, 981905625), (3, 327301875), (5, 196381125), (9, 109100625), (15, 65460375), (25, 39276225), (27, 36366875), (31, 31674375), (45, 21820125), (75, 13092075), (93, 10558125), (125, 7855245), (135, 7273375), (155, 6334875), (225, 4364025), (279, 3519375), (375, 2618415), (465, 2111625), (625, 1571049), (675, 1454675), (775, 1266975), (837, 1173125), (1125, 872805), (1395, 703875), (1875, 523683), (1877, 523125), (2325, 422325), (3375, 290935), (3875, 253395), (4185, 234625), (5625, 174561), (5631, 174375), (6975, 140775), (9385, 104625), (11625, 84465), (16875, 58187), (16893, 58125), (19375, 50679), (20925, 46925), (28155, 34875)]