28265298625

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{1451}}^1$

素因数の和:1675

約数の個数: 64

約数和(自身を含む): 38162741760

約数和(自身を除く): 9897443135

約数列:

[1, 5, 17, 25, 85, 89, 103, 125, 425, 445, 515, 1451, 1513, 1751, 2125, 2225, 2575, 7255, 7565, 8755, 9167, 11125, 12875, 24667, 36275, 37825, 43775, 45835, 123335, 129139, 149453, 155839, 181375, 189125, 218875, 229175, 616675, 645695, 747265, 779195, 1145875, 2195363, 2540701, 3083375, 3228475, 3736325, 3895975, 10976815, 12703505, 13301317, 16142375, 18681625, 19479875, 54884075, 63517525, 66506585, 226122389, 274420375, 317587625, 332532925, 1130611945, 1662664625, 5653059725, 28265298625]

約数ペア:

[(1, 28265298625), (5, 5653059725), (17, 1662664625), (25, 1130611945), (85, 332532925), (89, 317587625), (103, 274420375), (125, 226122389), (425, 66506585), (445, 63517525), (515, 54884075), (1451, 19479875), (1513, 18681625), (1751, 16142375), (2125, 13301317), (2225, 12703505), (2575, 10976815), (7255, 3895975), (7565, 3736325), (8755, 3228475), (9167, 3083375), (11125, 2540701), (12875, 2195363), (24667, 1145875), (36275, 779195), (37825, 747265), (43775, 645695), (45835, 616675), (123335, 229175), (129139, 218875), (149453, 189125), (155839, 181375)]