221455780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{449}}^1$

素因数の和:749

約数の個数: 96

約数和(自身を含む): 575769600

約数和(自身を除く): 354313820

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 271, 364, 449, 455, 542, 898, 910, 1084, 1355, 1796, 1820, 1897, 2245, 2710, 3143, 3523, 3794, 4490, 5420, 5837, 6286, 7046, 7588, 8980, 9485, 11674, 12572, 14092, 15715, 17615, 18970, 23348, 24661, 29185, 31430, 35230, 37940, 40859, 49322, 58370, 62860, 70460, 81718, 98644, 116740, 121679, 123305, 163436, 204295, 243358, 246610, 408590, 486716, 493220, 608395, 817180, 851753, 1216790, 1581827, 1703506, 2433580, 3163654, 3407012, 4258765, 6327308, 7909135, 8517530, 11072789, 15818270, 17035060, 22145578, 31636540, 44291156, 55363945, 110727890, 221455780]

約数ペア:

[(1, 221455780), (2, 110727890), (4, 55363945), (5, 44291156), (7, 31636540), (10, 22145578), (13, 17035060), (14, 15818270), (20, 11072789), (26, 8517530), (28, 7909135), (35, 6327308), (52, 4258765), (65, 3407012), (70, 3163654), (91, 2433580), (130, 1703506), (140, 1581827), (182, 1216790), (260, 851753), (271, 817180), (364, 608395), (449, 493220), (455, 486716), (542, 408590), (898, 246610), (910, 243358), (1084, 204295), (1355, 163436), (1796, 123305), (1820, 121679), (1897, 116740), (2245, 98644), (2710, 81718), (3143, 70460), (3523, 62860), (3794, 58370), (4490, 49322), (5420, 40859), (5837, 37940), (6286, 35230), (7046, 31430), (7588, 29185), (8980, 24661), (9485, 23348), (11674, 18970), (12572, 17615), (14092, 15715)]