29995725

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 51853824

約数和(自身を除く): 21858099

約数列:

[1, 3, 5, 15, 25, 43, 71, 75, 129, 131, 213, 215, 355, 393, 645, 655, 1065, 1075, 1775, 1965, 3053, 3225, 3275, 5325, 5633, 9159, 9301, 9825, 15265, 16899, 27903, 28165, 45795, 46505, 76325, 84495, 139515, 140825, 228975, 232525, 399943, 422475, 697575, 1199829, 1999715, 5999145, 9998575, 29995725]

約数ペア:

[(1, 29995725), (3, 9998575), (5, 5999145), (15, 1999715), (25, 1199829), (43, 697575), (71, 422475), (75, 399943), (129, 232525), (131, 228975), (213, 140825), (215, 139515), (355, 84495), (393, 76325), (645, 46505), (655, 45795), (1065, 28165), (1075, 27903), (1775, 16899), (1965, 15265), (3053, 9825), (3225, 9301), (3275, 9159), (5325, 5633)]