636954980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{4943}}^1$

素因数の和:5348

約数の個数: 48

約数和(自身を含む): 1420312320

約数和(自身を除く): 783357340

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 379, 758, 1516, 1895, 3790, 4943, 6443, 7580, 9886, 12886, 19772, 24715, 25772, 32215, 49430, 64430, 84031, 98860, 128860, 168062, 336124, 420155, 840310, 1680620, 1873397, 3746794, 7493588, 9366985, 18733970, 31847749, 37467940, 63695498, 127390996, 159238745, 318477490, 636954980]

約数ペア:

[(1, 636954980), (2, 318477490), (4, 159238745), (5, 127390996), (10, 63695498), (17, 37467940), (20, 31847749), (34, 18733970), (68, 9366985), (85, 7493588), (170, 3746794), (340, 1873397), (379, 1680620), (758, 840310), (1516, 420155), (1895, 336124), (3790, 168062), (4943, 128860), (6443, 98860), (7580, 84031), (9886, 64430), (12886, 49430), (19772, 32215), (24715, 25772)]