200642620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{126989}}^1$

素因数の和:127077

約数の個数: 24

約数和(自身を含む): 426686400

約数和(自身を除く): 226043780

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 126989, 253978, 507956, 634945, 1269890, 2539780, 10032131, 20064262, 40128524, 50160655, 100321310, 200642620]

約数ペア:

[(1, 200642620), (2, 100321310), (4, 50160655), (5, 40128524), (10, 20064262), (20, 10032131), (79, 2539780), (158, 1269890), (316, 634945), (395, 507956), (790, 253978), (1580, 126989)]