388516640

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{142837}}^1$

素因数の和:142869

約数の個数: 48

約数和(自身を含む): 971869752

約数和(自身を除く): 583353112

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 142837, 285674, 571348, 714185, 1142696, 1428370, 2285392, 2428229, 2856740, 4570784, 4856458, 5713480, 9712916, 11426960, 12141145, 19425832, 22853920, 24282290, 38851664, 48564580, 77703328, 97129160, 194258320, 388516640]

約数ペア:

[(1, 388516640), (2, 194258320), (4, 97129160), (5, 77703328), (8, 48564580), (10, 38851664), (16, 24282290), (17, 22853920), (20, 19425832), (32, 12141145), (34, 11426960), (40, 9712916), (68, 5713480), (80, 4856458), (85, 4570784), (136, 2856740), (160, 2428229), (170, 2285392), (272, 1428370), (340, 1142696), (544, 714185), (680, 571348), (1360, 285674), (2720, 142837)]