64488590

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{1489}}^1$

素因数の和:1628

約数の個数: 32

約数和(自身を含む): 119724480

約数和(自身を除く): 55235890

約数列:

[1, 2, 5, 10, 61, 71, 122, 142, 305, 355, 610, 710, 1489, 2978, 4331, 7445, 8662, 14890, 21655, 43310, 90829, 105719, 181658, 211438, 454145, 528595, 908290, 1057190, 6448859, 12897718, 32244295, 64488590]

約数ペア:

[(1, 64488590), (2, 32244295), (5, 12897718), (10, 6448859), (61, 1057190), (71, 908290), (122, 528595), (142, 454145), (305, 211438), (355, 181658), (610, 105719), (710, 90829), (1489, 43310), (2978, 21655), (4331, 14890), (7445, 8662)]