39771875

素因数分解:

$5^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 59058720

約数和(自身を除く): 19286845

約数列:

[1, 5, 11, 13, 25, 55, 65, 89, 125, 143, 275, 325, 445, 625, 715, 979, 1157, 1375, 1625, 2225, 3125, 3575, 4895, 5785, 6875, 8125, 11125, 12727, 17875, 24475, 28925, 34375, 40625, 55625, 63635, 89375, 122375, 144625, 278125, 318175, 446875, 611875, 723125, 1590875, 3059375, 3615625, 7954375, 39771875]

約数ペア:

[(1, 39771875), (5, 7954375), (11, 3615625), (13, 3059375), (25, 1590875), (55, 723125), (65, 611875), (89, 446875), (125, 318175), (143, 278125), (275, 144625), (325, 122375), (445, 89375), (625, 63635), (715, 55625), (979, 40625), (1157, 34375), (1375, 28925), (1625, 24475), (2225, 17875), (3125, 12727), (3575, 11125), (4895, 8125), (5785, 6875)]