221657487940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{757}}^1\times {\mathrm{2091503}}^1$

素因数の和:2092276

約数の個数: 48

約数和(自身を含む): 532680970752

約数和(自身を除く): 311023482812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 757, 1514, 3028, 3785, 5299, 7570, 10598, 15140, 21196, 26495, 52990, 105980, 2091503, 4183006, 8366012, 10457515, 14640521, 20915030, 29281042, 41830060, 58562084, 73202605, 146405210, 292810420, 1583267771, 3166535542, 6333071084, 7916338855, 11082874397, 15832677710, 22165748794, 31665355420, 44331497588, 55414371985, 110828743970, 221657487940]

約数ペア:

[(1, 221657487940), (2, 110828743970), (4, 55414371985), (5, 44331497588), (7, 31665355420), (10, 22165748794), (14, 15832677710), (20, 11082874397), (28, 7916338855), (35, 6333071084), (70, 3166535542), (140, 1583267771), (757, 292810420), (1514, 146405210), (3028, 73202605), (3785, 58562084), (5299, 41830060), (7570, 29281042), (10598, 20915030), (15140, 14640521), (21196, 10457515), (26495, 8366012), (52990, 4183006), (105980, 2091503)]