12390140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{269}}^1$

素因数の和:339

約数の個数: 72

約数和(自身を含む): 31026240

約数和(自身を除く): 18636100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 269, 329, 470, 490, 538, 658, 940, 980, 1076, 1316, 1345, 1645, 1883, 2303, 2690, 3290, 3766, 4606, 5380, 6580, 7532, 9212, 9415, 11515, 12643, 13181, 18830, 23030, 25286, 26362, 37660, 46060, 50572, 52724, 63215, 65905, 88501, 126430, 131810, 177002, 252860, 263620, 354004, 442505, 619507, 885010, 1239014, 1770020, 2478028, 3097535, 6195070, 12390140]

約数ペア:

[(1, 12390140), (2, 6195070), (4, 3097535), (5, 2478028), (7, 1770020), (10, 1239014), (14, 885010), (20, 619507), (28, 442505), (35, 354004), (47, 263620), (49, 252860), (70, 177002), (94, 131810), (98, 126430), (140, 88501), (188, 65905), (196, 63215), (235, 52724), (245, 50572), (269, 46060), (329, 37660), (470, 26362), (490, 25286), (538, 23030), (658, 18830), (940, 13181), (980, 12643), (1076, 11515), (1316, 9415), (1345, 9212), (1645, 7532), (1883, 6580), (2303, 5380), (2690, 4606), (3290, 3766)]