813304460

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{666643}}^1$

素因数の和:666713

約数の個数: 24

約数和(自身を含む): 1735940976

約数和(自身を除く): 922636516

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 666643, 1333286, 2666572, 3333215, 6666430, 13332860, 40665223, 81330446, 162660892, 203326115, 406652230, 813304460]

約数ペア:

[(1, 813304460), (2, 406652230), (4, 203326115), (5, 162660892), (10, 81330446), (20, 40665223), (61, 13332860), (122, 6666430), (244, 3333215), (305, 2666572), (610, 1333286), (1220, 666643)]