199761640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{384157}}^1$

素因数の和:384181

約数の個数: 32

約数和(自身を含む): 484039080

約数和(自身を除く): 284277440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 384157, 768314, 1536628, 1920785, 3073256, 3841570, 4994041, 7683140, 9988082, 15366280, 19976164, 24970205, 39952328, 49940410, 99880820, 199761640]

約数ペア:

[(1, 199761640), (2, 99880820), (4, 49940410), (5, 39952328), (8, 24970205), (10, 19976164), (13, 15366280), (20, 9988082), (26, 7683140), (40, 4994041), (52, 3841570), (65, 3073256), (104, 1920785), (130, 1536628), (260, 768314), (520, 384157)]