31727640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{353}}^1$

素因数の和:481

約数の個数: 128

約数和(自身を含む): 110108160

約数和(自身を除く): 78380520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 107, 120, 140, 168, 210, 214, 280, 321, 353, 420, 428, 535, 642, 706, 749, 840, 856, 1059, 1070, 1284, 1412, 1498, 1605, 1765, 2118, 2140, 2247, 2471, 2568, 2824, 2996, 3210, 3530, 3745, 4236, 4280, 4494, 4942, 5295, 5992, 6420, 7060, 7413, 7490, 8472, 8988, 9884, 10590, 11235, 12355, 12840, 14120, 14826, 14980, 17976, 19768, 21180, 22470, 24710, 29652, 29960, 37065, 37771, 42360, 44940, 49420, 59304, 74130, 75542, 89880, 98840, 113313, 148260, 151084, 188855, 226626, 264397, 296520, 302168, 377710, 453252, 528794, 566565, 755420, 793191, 906504, 1057588, 1133130, 1321985, 1510840, 1586382, 2115176, 2266260, 2643970, 3172764, 3965955, 4532520, 5287940, 6345528, 7931910, 10575880, 15863820, 31727640]

約数ペア:

[(1, 31727640), (2, 15863820), (3, 10575880), (4, 7931910), (5, 6345528), (6, 5287940), (7, 4532520), (8, 3965955), (10, 3172764), (12, 2643970), (14, 2266260), (15, 2115176), (20, 1586382), (21, 1510840), (24, 1321985), (28, 1133130), (30, 1057588), (35, 906504), (40, 793191), (42, 755420), (56, 566565), (60, 528794), (70, 453252), (84, 377710), (105, 302168), (107, 296520), (120, 264397), (140, 226626), (168, 188855), (210, 151084), (214, 148260), (280, 113313), (321, 98840), (353, 89880), (420, 75542), (428, 74130), (535, 59304), (642, 49420), (706, 44940), (749, 42360), (840, 37771), (856, 37065), (1059, 29960), (1070, 29652), (1284, 24710), (1412, 22470), (1498, 21180), (1605, 19768), (1765, 17976), (2118, 14980), (2140, 14826), (2247, 14120), (2471, 12840), (2568, 12355), (2824, 11235), (2996, 10590), (3210, 9884), (3530, 8988), (3745, 8472), (4236, 7490), (4280, 7413), (4494, 7060), (4942, 6420), (5295, 5992)]