20623740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:339

約数の個数: 96

約数和(自身を含む): 61824000

約数和(自身を除く): 41200260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 79, 95, 114, 158, 190, 228, 229, 237, 285, 316, 380, 395, 458, 474, 570, 687, 790, 916, 948, 1140, 1145, 1185, 1374, 1501, 1580, 2290, 2370, 2748, 3002, 3435, 4351, 4503, 4580, 4740, 6004, 6870, 7505, 8702, 9006, 13053, 13740, 15010, 17404, 18012, 18091, 21755, 22515, 26106, 30020, 36182, 43510, 45030, 52212, 54273, 65265, 72364, 87020, 90060, 90455, 108546, 130530, 180910, 217092, 261060, 271365, 343729, 361820, 542730, 687458, 1031187, 1085460, 1374916, 1718645, 2062374, 3437290, 4124748, 5155935, 6874580, 10311870, 20623740]

約数ペア:

[(1, 20623740), (2, 10311870), (3, 6874580), (4, 5155935), (5, 4124748), (6, 3437290), (10, 2062374), (12, 1718645), (15, 1374916), (19, 1085460), (20, 1031187), (30, 687458), (38, 542730), (57, 361820), (60, 343729), (76, 271365), (79, 261060), (95, 217092), (114, 180910), (158, 130530), (190, 108546), (228, 90455), (229, 90060), (237, 87020), (285, 72364), (316, 65265), (380, 54273), (395, 52212), (458, 45030), (474, 43510), (570, 36182), (687, 30020), (790, 26106), (916, 22515), (948, 21755), (1140, 18091), (1145, 18012), (1185, 17404), (1374, 15010), (1501, 13740), (1580, 13053), (2290, 9006), (2370, 8702), (2748, 7505), (3002, 6870), (3435, 6004), (4351, 4740), (4503, 4580)]