20185830

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{179}}^2$

素因数の和:378

約数の個数: 72

約数和(自身を含む): 60317712

約数和(自身を除く): 40131882

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 179, 210, 315, 358, 537, 630, 895, 1074, 1253, 1611, 1790, 2506, 2685, 3222, 3759, 5370, 6265, 7518, 8055, 11277, 12530, 16110, 18795, 22554, 32041, 37590, 56385, 64082, 96123, 112770, 160205, 192246, 224287, 288369, 320410, 448574, 480615, 576738, 672861, 961230, 1121435, 1345722, 1441845, 2018583, 2242870, 2883690, 3364305, 4037166, 6728610, 10092915, 20185830]

約数ペア:

[(1, 20185830), (2, 10092915), (3, 6728610), (5, 4037166), (6, 3364305), (7, 2883690), (9, 2242870), (10, 2018583), (14, 1441845), (15, 1345722), (18, 1121435), (21, 961230), (30, 672861), (35, 576738), (42, 480615), (45, 448574), (63, 320410), (70, 288369), (90, 224287), (105, 192246), (126, 160205), (179, 112770), (210, 96123), (315, 64082), (358, 56385), (537, 37590), (630, 32041), (895, 22554), (1074, 18795), (1253, 16110), (1611, 12530), (1790, 11277), (2506, 8055), (2685, 7518), (3222, 6265), (3759, 5370)]