71395460

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{619}}^1$

素因数の和:780

約数の個数: 48

約数和(自身を含む): 154156800

約数和(自身を除く): 82761340

約数列:

[1, 2, 4, 5, 10, 20, 73, 79, 146, 158, 292, 316, 365, 395, 619, 730, 790, 1238, 1460, 1580, 2476, 3095, 5767, 6190, 11534, 12380, 23068, 28835, 45187, 48901, 57670, 90374, 97802, 115340, 180748, 195604, 225935, 244505, 451870, 489010, 903740, 978020, 3569773, 7139546, 14279092, 17848865, 35697730, 71395460]

約数ペア:

[(1, 71395460), (2, 35697730), (4, 17848865), (5, 14279092), (10, 7139546), (20, 3569773), (73, 978020), (79, 903740), (146, 489010), (158, 451870), (292, 244505), (316, 225935), (365, 195604), (395, 180748), (619, 115340), (730, 97802), (790, 90374), (1238, 57670), (1460, 48901), (1580, 45187), (2476, 28835), (3095, 23068), (5767, 12380), (6190, 11534)]