64635220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{248597}}^1$

素因数の和:248619

約数の個数: 24

約数和(自身を含む): 146175624

約数和(自身を除く): 81540404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 248597, 497194, 994388, 1242985, 2485970, 3231761, 4971940, 6463522, 12927044, 16158805, 32317610, 64635220]

約数ペア:

[(1, 64635220), (2, 32317610), (4, 16158805), (5, 12927044), (10, 6463522), (13, 4971940), (20, 3231761), (26, 2485970), (52, 1242985), (65, 994388), (130, 497194), (260, 248597)]