128893575

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2351}}^1$

素因数の和:2424

約数の個数: 48

約数和(自身を含む): 230985216

約数和(自身を除く): 102091641

約数列:

[1, 3, 5, 15, 17, 25, 43, 51, 75, 85, 129, 215, 255, 425, 645, 731, 1075, 1275, 2193, 2351, 3225, 3655, 7053, 10965, 11755, 18275, 35265, 39967, 54825, 58775, 101093, 119901, 176325, 199835, 303279, 505465, 599505, 999175, 1516395, 1718581, 2527325, 2997525, 5155743, 7581975, 8592905, 25778715, 42964525, 128893575]

約数ペア:

[(1, 128893575), (3, 42964525), (5, 25778715), (15, 8592905), (17, 7581975), (25, 5155743), (43, 2997525), (51, 2527325), (75, 1718581), (85, 1516395), (129, 999175), (215, 599505), (255, 505465), (425, 303279), (645, 199835), (731, 176325), (1075, 119901), (1275, 101093), (2193, 58775), (2351, 54825), (3225, 39967), (3655, 35265), (7053, 18275), (10965, 11755)]