81208470

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20353}}^1$

素因数の和:20389

約数の個数: 64

約数和(自身を含む): 234478080

約数和(自身を除く): 153269610

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990, 20353, 40706, 61059, 101765, 122118, 142471, 203530, 284942, 305295, 386707, 427413, 610590, 712355, 773414, 854826, 1160121, 1424710, 1933535, 2137065, 2320242, 2706949, 3867070, 4274130, 5413898, 5800605, 8120847, 11601210, 13534745, 16241694, 27069490, 40604235, 81208470]

約数ペア:

[(1, 81208470), (2, 40604235), (3, 27069490), (5, 16241694), (6, 13534745), (7, 11601210), (10, 8120847), (14, 5800605), (15, 5413898), (19, 4274130), (21, 3867070), (30, 2706949), (35, 2320242), (38, 2137065), (42, 1933535), (57, 1424710), (70, 1160121), (95, 854826), (105, 773414), (114, 712355), (133, 610590), (190, 427413), (210, 386707), (266, 305295), (285, 284942), (399, 203530), (570, 142471), (665, 122118), (798, 101765), (1330, 61059), (1995, 40706), (3990, 20353)]