640372446

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{769}}^1\times {\mathrm{2203}}^1$

素因数の和:2990

約数の個数: 64

約数和(自身を含む): 1629196800

約数和(自身を除く): 988824354

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 769, 1538, 2203, 2307, 4406, 4614, 5383, 6609, 6921, 10766, 13218, 13842, 15421, 16149, 19827, 20763, 30842, 32298, 39654, 41526, 46263, 48447, 59481, 92526, 96894, 118962, 138789, 145341, 277578, 290682, 416367, 832734, 1694107, 3388214, 5082321, 10164642, 11858749, 15246963, 23717498, 30493926, 35576247, 45740889, 71152494, 91481778, 106728741, 213457482, 320186223, 640372446]

約数ペア:

[(1, 640372446), (2, 320186223), (3, 213457482), (6, 106728741), (7, 91481778), (9, 71152494), (14, 45740889), (18, 35576247), (21, 30493926), (27, 23717498), (42, 15246963), (54, 11858749), (63, 10164642), (126, 5082321), (189, 3388214), (378, 1694107), (769, 832734), (1538, 416367), (2203, 290682), (2307, 277578), (4406, 145341), (4614, 138789), (5383, 118962), (6609, 96894), (6921, 92526), (10766, 59481), (13218, 48447), (13842, 46263), (15421, 41526), (16149, 39654), (19827, 32298), (20763, 30842)]