261190020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47837}}^1$

素因数の和:47869

約数の個数: 96

約数和(自身を含む): 900119808

約数和(自身を除く): 638929788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 47837, 95674, 143511, 191348, 239185, 287022, 334859, 478370, 574044, 621881, 669718, 717555, 956740, 1004577, 1243762, 1339436, 1435110, 1674295, 1865643, 2009154, 2487524, 2870220, 3109405, 3348590, 3731286, 4018308, 4353167, 5022885, 6218810, 6697180, 7462572, 8706334, 9328215, 10045770, 12437620, 13059501, 17412668, 18656430, 20091540, 21765835, 26119002, 37312860, 43531670, 52238004, 65297505, 87063340, 130595010, 261190020]

約数ペア:

[(1, 261190020), (2, 130595010), (3, 87063340), (4, 65297505), (5, 52238004), (6, 43531670), (7, 37312860), (10, 26119002), (12, 21765835), (13, 20091540), (14, 18656430), (15, 17412668), (20, 13059501), (21, 12437620), (26, 10045770), (28, 9328215), (30, 8706334), (35, 7462572), (39, 6697180), (42, 6218810), (52, 5022885), (60, 4353167), (65, 4018308), (70, 3731286), (78, 3348590), (84, 3109405), (91, 2870220), (105, 2487524), (130, 2009154), (140, 1865643), (156, 1674295), (182, 1435110), (195, 1339436), (210, 1243762), (260, 1004577), (273, 956740), (364, 717555), (390, 669718), (420, 621881), (455, 574044), (546, 478370), (780, 334859), (910, 287022), (1092, 239185), (1365, 191348), (1820, 143511), (2730, 95674), (5460, 47837)]