20109394420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1231}}^1\times {\mathrm{42989}}^1$

素因数の和:44248

約数の個数: 48

約数和(自身を含む): 44489491200

約数和(自身を除く): 24380096780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1231, 2462, 4924, 6155, 12310, 23389, 24620, 42989, 46778, 85978, 93556, 116945, 171956, 214945, 233890, 429890, 467780, 816791, 859780, 1633582, 3267164, 4083955, 8167910, 16335820, 52919459, 105838918, 211677836, 264597295, 529194590, 1005469721, 1058389180, 2010939442, 4021878884, 5027348605, 10054697210, 20109394420]

約数ペア:

[(1, 20109394420), (2, 10054697210), (4, 5027348605), (5, 4021878884), (10, 2010939442), (19, 1058389180), (20, 1005469721), (38, 529194590), (76, 264597295), (95, 211677836), (190, 105838918), (380, 52919459), (1231, 16335820), (2462, 8167910), (4924, 4083955), (6155, 3267164), (12310, 1633582), (23389, 859780), (24620, 816791), (42989, 467780), (46778, 429890), (85978, 233890), (93556, 214945), (116945, 171956)]