640825332

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{20563}}^1$

素因数の和:20637

約数の個数: 72

約数和(自身を含む): 1772287776

約数和(自身を除く): 1131462444

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 53, 84, 98, 106, 147, 159, 196, 212, 294, 318, 371, 588, 636, 742, 1113, 1484, 2226, 2597, 4452, 5194, 7791, 10388, 15582, 20563, 31164, 41126, 61689, 82252, 123378, 143941, 246756, 287882, 431823, 575764, 863646, 1007587, 1089839, 1727292, 2015174, 2179678, 3022761, 3269517, 4030348, 4359356, 6045522, 6539034, 7628873, 12091044, 13078068, 15257746, 22886619, 30515492, 45773238, 53402111, 91546476, 106804222, 160206333, 213608444, 320412666, 640825332]

約数ペア:

[(1, 640825332), (2, 320412666), (3, 213608444), (4, 160206333), (6, 106804222), (7, 91546476), (12, 53402111), (14, 45773238), (21, 30515492), (28, 22886619), (42, 15257746), (49, 13078068), (53, 12091044), (84, 7628873), (98, 6539034), (106, 6045522), (147, 4359356), (159, 4030348), (196, 3269517), (212, 3022761), (294, 2179678), (318, 2015174), (371, 1727292), (588, 1089839), (636, 1007587), (742, 863646), (1113, 575764), (1484, 431823), (2226, 287882), (2597, 246756), (4452, 143941), (5194, 123378), (7791, 82252), (10388, 61689), (15582, 41126), (20563, 31164)]