207670820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{2381}}^1$

素因数の和:2493

約数の個数: 72

約数和(自身を含む): 513225720

約数和(自身を除く): 305554900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 356, 445, 490, 623, 890, 980, 1246, 1780, 2381, 2492, 3115, 4361, 4762, 6230, 8722, 9524, 11905, 12460, 16667, 17444, 21805, 23810, 33334, 43610, 47620, 66668, 83335, 87220, 116669, 166670, 211909, 233338, 333340, 423818, 466676, 583345, 847636, 1059545, 1166690, 1483363, 2119090, 2333380, 2966726, 4238180, 5933452, 7416815, 10383541, 14833630, 20767082, 29667260, 41534164, 51917705, 103835410, 207670820]

約数ペア:

[(1, 207670820), (2, 103835410), (4, 51917705), (5, 41534164), (7, 29667260), (10, 20767082), (14, 14833630), (20, 10383541), (28, 7416815), (35, 5933452), (49, 4238180), (70, 2966726), (89, 2333380), (98, 2119090), (140, 1483363), (178, 1166690), (196, 1059545), (245, 847636), (356, 583345), (445, 466676), (490, 423818), (623, 333340), (890, 233338), (980, 211909), (1246, 166670), (1780, 116669), (2381, 87220), (2492, 83335), (3115, 66668), (4361, 47620), (4762, 43610), (6230, 33334), (8722, 23810), (9524, 21805), (11905, 17444), (12460, 16667)]