1989458772

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{640109}}^1$

素因数の和:640160

約数の個数: 48

約数和(自身を含む): 5448616320

約数和(自身を除く): 3459157548

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 74, 84, 111, 148, 222, 259, 444, 518, 777, 1036, 1554, 3108, 640109, 1280218, 1920327, 2560436, 3840654, 4480763, 7681308, 8961526, 13442289, 17923052, 23684033, 26884578, 47368066, 53769156, 71052099, 94736132, 142104198, 165788231, 284208396, 331576462, 497364693, 663152924, 994729386, 1989458772]

約数ペア:

[(1, 1989458772), (2, 994729386), (3, 663152924), (4, 497364693), (6, 331576462), (7, 284208396), (12, 165788231), (14, 142104198), (21, 94736132), (28, 71052099), (37, 53769156), (42, 47368066), (74, 26884578), (84, 23684033), (111, 17923052), (148, 13442289), (222, 8961526), (259, 7681308), (444, 4480763), (518, 3840654), (777, 2560436), (1036, 1920327), (1554, 1280218), (3108, 640109)]