28263165

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 56279040

約数和(自身を除く): 28015875

約数列:

[1, 3, 5, 7, 15, 19, 21, 31, 35, 57, 93, 95, 105, 133, 155, 217, 285, 399, 457, 465, 589, 651, 665, 1085, 1371, 1767, 1995, 2285, 2945, 3199, 3255, 4123, 6855, 8683, 8835, 9597, 12369, 14167, 15995, 20615, 26049, 42501, 43415, 47985, 60781, 61845, 70835, 99169, 130245, 182343, 212505, 269173, 297507, 303905, 495845, 807519, 911715, 1345865, 1487535, 1884211, 4037595, 5652633, 9421055, 28263165]

約数ペア:

[(1, 28263165), (3, 9421055), (5, 5652633), (7, 4037595), (15, 1884211), (19, 1487535), (21, 1345865), (31, 911715), (35, 807519), (57, 495845), (93, 303905), (95, 297507), (105, 269173), (133, 212505), (155, 182343), (217, 130245), (285, 99169), (399, 70835), (457, 61845), (465, 60781), (589, 47985), (651, 43415), (665, 42501), (1085, 26049), (1371, 20615), (1767, 15995), (1995, 14167), (2285, 12369), (2945, 9597), (3199, 8835), (3255, 8683), (4123, 6855)]