8618690

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:338

約数の個数: 32

約数和(自身を含む): 16070400

約数和(自身を除く): 7451710

約数列:

[1, 2, 5, 10, 61, 71, 122, 142, 199, 305, 355, 398, 610, 710, 995, 1990, 4331, 8662, 12139, 14129, 21655, 24278, 28258, 43310, 60695, 70645, 121390, 141290, 861869, 1723738, 4309345, 8618690]

約数ペア:

[(1, 8618690), (2, 4309345), (5, 1723738), (10, 861869), (61, 141290), (71, 121390), (122, 70645), (142, 60695), (199, 43310), (305, 28258), (355, 24278), (398, 21655), (610, 14129), (710, 12139), (995, 8662), (1990, 4331)]