78705860

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{64513}}^1$

素因数の和:64583

約数の個数: 24

約数和(自身を含む): 167994456

約数和(自身を除く): 89288596

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 64513, 129026, 258052, 322565, 645130, 1290260, 3935293, 7870586, 15741172, 19676465, 39352930, 78705860]

約数ペア:

[(1, 78705860), (2, 39352930), (4, 19676465), (5, 15741172), (10, 7870586), (20, 3935293), (61, 1290260), (122, 645130), (244, 322565), (305, 258052), (610, 129026), (1220, 64513)]