18512970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{443}}^1$

素因数の和:659

約数の個数: 64

約数和(自身を含む): 51148800

約数和(自身を除く): 32635830

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 199, 210, 398, 443, 597, 886, 995, 1194, 1329, 1393, 1990, 2215, 2658, 2786, 2985, 3101, 4179, 4430, 5970, 6202, 6645, 6965, 8358, 9303, 13290, 13930, 15505, 18606, 20895, 31010, 41790, 46515, 88157, 93030, 176314, 264471, 440785, 528942, 617099, 881570, 1234198, 1322355, 1851297, 2644710, 3085495, 3702594, 6170990, 9256485, 18512970]

約数ペア:

[(1, 18512970), (2, 9256485), (3, 6170990), (5, 3702594), (6, 3085495), (7, 2644710), (10, 1851297), (14, 1322355), (15, 1234198), (21, 881570), (30, 617099), (35, 528942), (42, 440785), (70, 264471), (105, 176314), (199, 93030), (210, 88157), (398, 46515), (443, 41790), (597, 31010), (886, 20895), (995, 18606), (1194, 15505), (1329, 13930), (1393, 13290), (1990, 9303), (2215, 8358), (2658, 6965), (2786, 6645), (2985, 6202), (3101, 5970), (4179, 4430)]