7791225

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 14207424

約数和(自身を除く): 6416199

約数列:

[1, 3, 5, 13, 15, 25, 39, 61, 65, 75, 131, 183, 195, 305, 325, 393, 655, 793, 915, 975, 1525, 1703, 1965, 2379, 3275, 3965, 4575, 5109, 7991, 8515, 9825, 11895, 19825, 23973, 25545, 39955, 42575, 59475, 103883, 119865, 127725, 199775, 311649, 519415, 599325, 1558245, 2597075, 7791225]

約数ペア:

[(1, 7791225), (3, 2597075), (5, 1558245), (13, 599325), (15, 519415), (25, 311649), (39, 199775), (61, 127725), (65, 119865), (75, 103883), (131, 59475), (183, 42575), (195, 39955), (305, 25545), (325, 23973), (393, 19825), (655, 11895), (793, 9825), (915, 8515), (975, 7991), (1525, 5109), (1703, 4575), (1965, 3965), (2379, 3275)]