220072860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{449}}^1$

素因数の和:860

約数の個数: 144

約数和(自身を含む): 766584000

約数和(自身を除く): 546511140

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 389, 420, 449, 630, 778, 898, 1167, 1260, 1347, 1556, 1796, 1945, 2245, 2334, 2694, 2723, 3143, 3501, 3890, 4041, 4490, 4668, 5388, 5446, 5835, 6286, 6735, 7002, 7780, 8082, 8169, 8980, 9429, 10892, 11670, 12572, 13470, 13615, 14004, 15715, 16164, 16338, 17505, 18858, 20205, 23340, 24507, 26940, 27230, 28287, 31430, 32676, 35010, 37716, 40410, 40845, 47145, 49014, 54460, 56574, 62860, 70020, 80820, 81690, 94290, 98028, 113148, 122535, 141435, 163380, 174661, 188580, 245070, 282870, 349322, 490140, 523983, 565740, 698644, 873305, 1047966, 1222627, 1571949, 1746610, 2095932, 2445254, 2619915, 3143898, 3493220, 3667881, 4890508, 5239830, 6113135, 6287796, 7335762, 7859745, 10479660, 11003643, 12226270, 14671524, 15719490, 18339405, 22007286, 24452540, 31438980, 36678810, 44014572, 55018215, 73357620, 110036430, 220072860]

約数ペア:

[(1, 220072860), (2, 110036430), (3, 73357620), (4, 55018215), (5, 44014572), (6, 36678810), (7, 31438980), (9, 24452540), (10, 22007286), (12, 18339405), (14, 15719490), (15, 14671524), (18, 12226270), (20, 11003643), (21, 10479660), (28, 7859745), (30, 7335762), (35, 6287796), (36, 6113135), (42, 5239830), (45, 4890508), (60, 3667881), (63, 3493220), (70, 3143898), (84, 2619915), (90, 2445254), (105, 2095932), (126, 1746610), (140, 1571949), (180, 1222627), (210, 1047966), (252, 873305), (315, 698644), (389, 565740), (420, 523983), (449, 490140), (630, 349322), (778, 282870), (898, 245070), (1167, 188580), (1260, 174661), (1347, 163380), (1556, 141435), (1796, 122535), (1945, 113148), (2245, 98028), (2334, 94290), (2694, 81690), (2723, 80820), (3143, 70020), (3501, 62860), (3890, 56574), (4041, 54460), (4490, 49014), (4668, 47145), (5388, 40845), (5446, 40410), (5835, 37716), (6286, 35010), (6735, 32676), (7002, 31430), (7780, 28287), (8082, 27230), (8169, 26940), (8980, 24507), (9429, 23340), (10892, 20205), (11670, 18858), (12572, 17505), (13470, 16338), (13615, 16164), (14004, 15715)]