30188720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19861}}^1$

素因数の和:19893

約数の個数: 40

約数和(自身を含む): 73886640

約数和(自身を除く): 43697920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 19861, 39722, 79444, 99305, 158888, 198610, 317776, 377359, 397220, 754718, 794440, 1509436, 1588880, 1886795, 3018872, 3773590, 6037744, 7547180, 15094360, 30188720]

約数ペア:

[(1, 30188720), (2, 15094360), (4, 7547180), (5, 6037744), (8, 3773590), (10, 3018872), (16, 1886795), (19, 1588880), (20, 1509436), (38, 794440), (40, 754718), (76, 397220), (80, 377359), (95, 317776), (152, 198610), (190, 158888), (304, 99305), (380, 79444), (760, 39722), (1520, 19861)]