647163075

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{28859}}^1$

素因数の和:28908

約数の個数: 48

約数和(自身を含む): 1202423040

約数和(自身を除く): 555259965

約数列:

[1, 3, 5, 13, 15, 23, 25, 39, 65, 69, 75, 115, 195, 299, 325, 345, 575, 897, 975, 1495, 1725, 4485, 7475, 22425, 28859, 86577, 144295, 375167, 432885, 663757, 721475, 1125501, 1875835, 1991271, 2164425, 3318785, 5627505, 8628841, 9379175, 9956355, 16593925, 25886523, 28137525, 43144205, 49781775, 129432615, 215721025, 647163075]

約数ペア:

[(1, 647163075), (3, 215721025), (5, 129432615), (13, 49781775), (15, 43144205), (23, 28137525), (25, 25886523), (39, 16593925), (65, 9956355), (69, 9379175), (75, 8628841), (115, 5627505), (195, 3318785), (299, 2164425), (325, 1991271), (345, 1875835), (575, 1125501), (897, 721475), (975, 663757), (1495, 432885), (1725, 375167), (4485, 144295), (7475, 86577), (22425, 28859)]