807380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 1989120

約数和(自身を除く): 1181740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 79, 140, 146, 158, 292, 316, 365, 395, 511, 553, 730, 790, 1022, 1106, 1460, 1580, 2044, 2212, 2555, 2765, 5110, 5530, 5767, 10220, 11060, 11534, 23068, 28835, 40369, 57670, 80738, 115340, 161476, 201845, 403690, 807380]

約数ペア:

[(1, 807380), (2, 403690), (4, 201845), (5, 161476), (7, 115340), (10, 80738), (14, 57670), (20, 40369), (28, 28835), (35, 23068), (70, 11534), (73, 11060), (79, 10220), (140, 5767), (146, 5530), (158, 5110), (292, 2765), (316, 2555), (365, 2212), (395, 2044), (511, 1580), (553, 1460), (730, 1106), (790, 1022)]