718505420

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1\times {\mathrm{2473}}^1$

素因数の和:2754

約数の個数: 48

約数和(自身を含む): 1537838400

約数和(自身を除く): 819332980

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 199, 292, 365, 398, 730, 796, 995, 1460, 1990, 2473, 3980, 4946, 9892, 12365, 14527, 24730, 29054, 49460, 58108, 72635, 145270, 180529, 290540, 361058, 492127, 722116, 902645, 984254, 1805290, 1968508, 2460635, 3610580, 4921270, 9842540, 35925271, 71850542, 143701084, 179626355, 359252710, 718505420]

約数ペア:

[(1, 718505420), (2, 359252710), (4, 179626355), (5, 143701084), (10, 71850542), (20, 35925271), (73, 9842540), (146, 4921270), (199, 3610580), (292, 2460635), (365, 1968508), (398, 1805290), (730, 984254), (796, 902645), (995, 722116), (1460, 492127), (1990, 361058), (2473, 290540), (3980, 180529), (4946, 145270), (9892, 72635), (12365, 58108), (14527, 49460), (24730, 29054)]