645453664

素因数分解:

$2^5\times {\mathrm{167}}^1\times {\mathrm{269}}^1\times {\mathrm{449}}^1$

素因数の和:895

約数の個数: 48

約数和(自身を含む): 1285956000

約数和(自身を除く): 640502336

約数列:

[1, 2, 4, 8, 16, 32, 167, 269, 334, 449, 538, 668, 898, 1076, 1336, 1796, 2152, 2672, 3592, 4304, 5344, 7184, 8608, 14368, 44923, 74983, 89846, 120781, 149966, 179692, 241562, 299932, 359384, 483124, 599864, 718768, 966248, 1199728, 1437536, 1932496, 2399456, 3864992, 20170427, 40340854, 80681708, 161363416, 322726832, 645453664]

約数ペア:

[(1, 645453664), (2, 322726832), (4, 161363416), (8, 80681708), (16, 40340854), (32, 20170427), (167, 3864992), (269, 2399456), (334, 1932496), (449, 1437536), (538, 1199728), (668, 966248), (898, 718768), (1076, 599864), (1336, 483124), (1796, 359384), (2152, 299932), (2672, 241562), (3592, 179692), (4304, 149966), (5344, 120781), (7184, 89846), (8608, 74983), (14368, 44923)]