255730020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6691}}^1$

素因数の和:6730

約数の個数: 144

約数和(自身を含む): 897156288

約数和(自身を除く): 641426268

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 490, 546, 588, 637, 735, 780, 910, 980, 1092, 1274, 1365, 1470, 1820, 1911, 2548, 2730, 2940, 3185, 3822, 5460, 6370, 6691, 7644, 9555, 12740, 13382, 19110, 20073, 26764, 33455, 38220, 40146, 46837, 66910, 80292, 86983, 93674, 100365, 133820, 140511, 173966, 187348, 200730, 234185, 260949, 281022, 327859, 347932, 401460, 434915, 468370, 521898, 562044, 608881, 655718, 702555, 869830, 936740, 983577, 1043796, 1217762, 1304745, 1311436, 1405110, 1639295, 1739660, 1826643, 1967154, 2435524, 2609490, 2810220, 3044405, 3278590, 3653286, 3934308, 4262167, 4917885, 5218980, 6088810, 6557180, 7306572, 8524334, 9133215, 9835770, 12177620, 12786501, 17048668, 18266430, 19671540, 21310835, 25573002, 36532860, 42621670, 51146004, 63932505, 85243340, 127865010, 255730020]

約数ペア:

[(1, 255730020), (2, 127865010), (3, 85243340), (4, 63932505), (5, 51146004), (6, 42621670), (7, 36532860), (10, 25573002), (12, 21310835), (13, 19671540), (14, 18266430), (15, 17048668), (20, 12786501), (21, 12177620), (26, 9835770), (28, 9133215), (30, 8524334), (35, 7306572), (39, 6557180), (42, 6088810), (49, 5218980), (52, 4917885), (60, 4262167), (65, 3934308), (70, 3653286), (78, 3278590), (84, 3044405), (91, 2810220), (98, 2609490), (105, 2435524), (130, 1967154), (140, 1826643), (147, 1739660), (156, 1639295), (182, 1405110), (195, 1311436), (196, 1304745), (210, 1217762), (245, 1043796), (260, 983577), (273, 936740), (294, 869830), (364, 702555), (390, 655718), (420, 608881), (455, 562044), (490, 521898), (546, 468370), (588, 434915), (637, 401460), (735, 347932), (780, 327859), (910, 281022), (980, 260949), (1092, 234185), (1274, 200730), (1365, 187348), (1470, 173966), (1820, 140511), (1911, 133820), (2548, 100365), (2730, 93674), (2940, 86983), (3185, 80292), (3822, 66910), (5460, 46837), (6370, 40146), (6691, 38220), (7644, 33455), (9555, 26764), (12740, 20073), (13382, 19110)]