64424540

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{52807}}^1$

素因数の和:52877

約数の個数: 24

約数和(自身を含む): 137512032

約数和(自身を除く): 73087492

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 52807, 105614, 211228, 264035, 528070, 1056140, 3221227, 6442454, 12884908, 16106135, 32212270, 64424540]

約数ペア:

[(1, 64424540), (2, 32212270), (4, 16106135), (5, 12884908), (10, 6442454), (20, 3221227), (61, 1056140), (122, 528070), (244, 264035), (305, 211228), (610, 105614), (1220, 52807)]