19919060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1801}}^1$

素因数の和:1896

約数の個数: 48

約数和(自身を含む): 48437760

約数和(自身を除く): 28518700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 1801, 2212, 2765, 3602, 5530, 7204, 9005, 11060, 12607, 18010, 25214, 36020, 50428, 63035, 126070, 142279, 252140, 284558, 569116, 711395, 995953, 1422790, 1991906, 2845580, 3983812, 4979765, 9959530, 19919060]

約数ペア:

[(1, 19919060), (2, 9959530), (4, 4979765), (5, 3983812), (7, 2845580), (10, 1991906), (14, 1422790), (20, 995953), (28, 711395), (35, 569116), (70, 284558), (79, 252140), (140, 142279), (158, 126070), (316, 63035), (395, 50428), (553, 36020), (790, 25214), (1106, 18010), (1580, 12607), (1801, 11060), (2212, 9005), (2765, 7204), (3602, 5530)]