648703016

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{328291}}^1$

素因数の和:328329

約数の個数: 32

約数和(自身を含む): 1378826400

約数和(自身を除く): 730123384

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 328291, 656582, 1313164, 2626328, 4267783, 6237529, 8535566, 12475058, 17071132, 24950116, 34142264, 49900232, 81087877, 162175754, 324351508, 648703016]

約数ペア:

[(1, 648703016), (2, 324351508), (4, 162175754), (8, 81087877), (13, 49900232), (19, 34142264), (26, 24950116), (38, 17071132), (52, 12475058), (76, 8535566), (104, 6237529), (152, 4267783), (247, 2626328), (494, 1313164), (988, 656582), (1976, 328291)]