627492040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{320149}}^1$

素因数の和:320174

約数の個数: 48

約数和(自身を含む): 1642369500

約数和(自身を除く): 1014877460

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 320149, 640298, 1280596, 1600745, 2241043, 2561192, 3201490, 4482086, 6402980, 8964172, 11205215, 12805960, 15687301, 17928344, 22410430, 31374602, 44820860, 62749204, 78436505, 89641720, 125498408, 156873010, 313746020, 627492040]

約数ペア:

[(1, 627492040), (2, 313746020), (4, 156873010), (5, 125498408), (7, 89641720), (8, 78436505), (10, 62749204), (14, 44820860), (20, 31374602), (28, 22410430), (35, 17928344), (40, 15687301), (49, 12805960), (56, 11205215), (70, 8964172), (98, 6402980), (140, 4482086), (196, 3201490), (245, 2561192), (280, 2241043), (392, 1600745), (490, 1280596), (980, 640298), (1960, 320149)]