203204420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{166561}}^1$

素因数の和:166631

約数の個数: 24

約数和(自身を含む): 433727448

約数和(自身を除く): 230523028

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 166561, 333122, 666244, 832805, 1665610, 3331220, 10160221, 20320442, 40640884, 50801105, 101602210, 203204420]

約数ペア:

[(1, 203204420), (2, 101602210), (4, 50801105), (5, 40640884), (10, 20320442), (20, 10160221), (61, 3331220), (122, 1665610), (244, 832805), (305, 666244), (610, 333122), (1220, 166561)]