254260020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{439}}^1$

素因数の和:662

約数の個数: 144

約数和(自身を含む): 834261120

約数和(自身を除く): 580001100

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 197, 210, 245, 294, 394, 420, 439, 490, 588, 591, 735, 788, 878, 980, 985, 1182, 1317, 1379, 1470, 1756, 1970, 2195, 2364, 2634, 2758, 2940, 2955, 3073, 3940, 4137, 4390, 5268, 5516, 5910, 6146, 6585, 6895, 8274, 8780, 9219, 9653, 11820, 12292, 13170, 13790, 15365, 16548, 18438, 19306, 20685, 21511, 26340, 27580, 28959, 30730, 36876, 38612, 41370, 43022, 46095, 48265, 57918, 61460, 64533, 82740, 86044, 86483, 92190, 96530, 107555, 115836, 129066, 144795, 172966, 184380, 193060, 215110, 258132, 259449, 289590, 322665, 345932, 430220, 432415, 518898, 579180, 605381, 645330, 864830, 1037796, 1210762, 1290660, 1297245, 1729660, 1816143, 2421524, 2594490, 3026905, 3632286, 4237667, 5188980, 6053810, 7264572, 8475334, 9080715, 12107620, 12713001, 16950668, 18161430, 21188335, 25426002, 36322860, 42376670, 50852004, 63565005, 84753340, 127130010, 254260020]

約数ペア:

[(1, 254260020), (2, 127130010), (3, 84753340), (4, 63565005), (5, 50852004), (6, 42376670), (7, 36322860), (10, 25426002), (12, 21188335), (14, 18161430), (15, 16950668), (20, 12713001), (21, 12107620), (28, 9080715), (30, 8475334), (35, 7264572), (42, 6053810), (49, 5188980), (60, 4237667), (70, 3632286), (84, 3026905), (98, 2594490), (105, 2421524), (140, 1816143), (147, 1729660), (196, 1297245), (197, 1290660), (210, 1210762), (245, 1037796), (294, 864830), (394, 645330), (420, 605381), (439, 579180), (490, 518898), (588, 432415), (591, 430220), (735, 345932), (788, 322665), (878, 289590), (980, 259449), (985, 258132), (1182, 215110), (1317, 193060), (1379, 184380), (1470, 172966), (1756, 144795), (1970, 129066), (2195, 115836), (2364, 107555), (2634, 96530), (2758, 92190), (2940, 86483), (2955, 86044), (3073, 82740), (3940, 64533), (4137, 61460), (4390, 57918), (5268, 48265), (5516, 46095), (5910, 43022), (6146, 41370), (6585, 38612), (6895, 36876), (8274, 30730), (8780, 28959), (9219, 27580), (9653, 26340), (11820, 21511), (12292, 20685), (13170, 19306), (13790, 18438), (15365, 16548)]