388531845

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{1087}}^1$

素因数の和:1171

約数の個数: 72

約数和(自身を含む): 745445376

約数和(自身を除く): 356913531

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 47, 65, 117, 141, 169, 195, 235, 423, 507, 585, 611, 705, 845, 1087, 1521, 1833, 2115, 2535, 3055, 3261, 5435, 5499, 7605, 7943, 9165, 9783, 14131, 16305, 23829, 27495, 39715, 42393, 48915, 51089, 70655, 71487, 119145, 127179, 153267, 183703, 211965, 255445, 357435, 459801, 551109, 635895, 664157, 766335, 918515, 1653327, 1992471, 2299005, 2755545, 3320785, 5977413, 8266635, 8634041, 9962355, 25902123, 29887065, 43170205, 77706369, 129510615, 388531845]

約数ペア:

[(1, 388531845), (3, 129510615), (5, 77706369), (9, 43170205), (13, 29887065), (15, 25902123), (39, 9962355), (45, 8634041), (47, 8266635), (65, 5977413), (117, 3320785), (141, 2755545), (169, 2299005), (195, 1992471), (235, 1653327), (423, 918515), (507, 766335), (585, 664157), (611, 635895), (705, 551109), (845, 459801), (1087, 357435), (1521, 255445), (1833, 211965), (2115, 183703), (2535, 153267), (3055, 127179), (3261, 119145), (5435, 71487), (5499, 70655), (7605, 51089), (7943, 48915), (9165, 42393), (9783, 39715), (14131, 27495), (16305, 23829)]