72028125

素因数分解:

$3^2\times 5^5\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 140756616

約数和(自身を除く): 68728491

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 125, 195, 197, 225, 325, 375, 585, 591, 625, 975, 985, 1125, 1625, 1773, 1875, 2561, 2925, 2955, 3125, 4875, 4925, 5625, 7683, 8125, 8865, 9375, 12805, 14625, 14775, 23049, 24375, 24625, 28125, 38415, 40625, 44325, 64025, 73125, 73875, 115245, 121875, 123125, 192075, 221625, 320125, 365625, 369375, 576225, 615625, 960375, 1108125, 1600625, 1846875, 2881125, 4801875, 5540625, 8003125, 14405625, 24009375, 72028125]

約数ペア:

[(1, 72028125), (3, 24009375), (5, 14405625), (9, 8003125), (13, 5540625), (15, 4801875), (25, 2881125), (39, 1846875), (45, 1600625), (65, 1108125), (75, 960375), (117, 615625), (125, 576225), (195, 369375), (197, 365625), (225, 320125), (325, 221625), (375, 192075), (585, 123125), (591, 121875), (625, 115245), (975, 73875), (985, 73125), (1125, 64025), (1625, 44325), (1773, 40625), (1875, 38415), (2561, 28125), (2925, 24625), (2955, 24375), (3125, 23049), (4875, 14775), (4925, 14625), (5625, 12805), (7683, 9375), (8125, 8865)]