245664580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{2729}}^1$

素因数の和:3388

約数の個数: 48

約数和(自身を含む): 590728320

約数和(自身を除く): 345063740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 643, 1286, 2572, 2729, 3215, 4501, 5458, 6430, 9002, 10916, 12860, 13645, 18004, 19103, 22505, 27290, 38206, 45010, 54580, 76412, 90020, 95515, 191030, 382060, 1754747, 3509494, 7018988, 8773735, 12283229, 17547470, 24566458, 35094940, 49132916, 61416145, 122832290, 245664580]

約数ペア:

[(1, 245664580), (2, 122832290), (4, 61416145), (5, 49132916), (7, 35094940), (10, 24566458), (14, 17547470), (20, 12283229), (28, 8773735), (35, 7018988), (70, 3509494), (140, 1754747), (643, 382060), (1286, 191030), (2572, 95515), (2729, 90020), (3215, 76412), (4501, 54580), (5458, 45010), (6430, 38206), (9002, 27290), (10916, 22505), (12860, 19103), (13645, 18004)]