31507905

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 60979968

約数和(自身を除く): 29472063

約数列:

[1, 3, 5, 11, 13, 15, 33, 37, 39, 55, 65, 111, 143, 165, 185, 195, 397, 407, 429, 481, 555, 715, 1191, 1221, 1443, 1985, 2035, 2145, 2405, 4367, 5161, 5291, 5955, 6105, 7215, 13101, 14689, 15483, 15873, 21835, 25805, 26455, 44067, 56771, 65505, 73445, 77415, 79365, 161579, 170313, 190957, 220335, 283855, 484737, 572871, 807895, 851565, 954785, 2100527, 2423685, 2864355, 6301581, 10502635, 31507905]

約数ペア:

[(1, 31507905), (3, 10502635), (5, 6301581), (11, 2864355), (13, 2423685), (15, 2100527), (33, 954785), (37, 851565), (39, 807895), (55, 572871), (65, 484737), (111, 283855), (143, 220335), (165, 190957), (185, 170313), (195, 161579), (397, 79365), (407, 77415), (429, 73445), (481, 65505), (555, 56771), (715, 44067), (1191, 26455), (1221, 25805), (1443, 21835), (1985, 15873), (2035, 15483), (2145, 14689), (2405, 13101), (4367, 7215), (5161, 6105), (5291, 5955)]