20916090

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:189

約数の個数: 128

約数和(自身を含む): 61689600

約数和(自身を除く): 40773510

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 59, 65, 78, 90, 101, 117, 118, 130, 135, 177, 195, 202, 234, 270, 295, 303, 351, 354, 390, 505, 531, 585, 590, 606, 702, 767, 885, 909, 1010, 1062, 1170, 1313, 1515, 1534, 1593, 1755, 1770, 1818, 2301, 2626, 2655, 2727, 3030, 3186, 3510, 3835, 3939, 4545, 4602, 5310, 5454, 5959, 6565, 6903, 7670, 7878, 7965, 9090, 11505, 11817, 11918, 13130, 13635, 13806, 15930, 17877, 19695, 20709, 23010, 23634, 27270, 29795, 34515, 35451, 35754, 39390, 41418, 53631, 59085, 59590, 69030, 70902, 77467, 89385, 103545, 107262, 118170, 154934, 160893, 177255, 178770, 207090, 232401, 268155, 321786, 354510, 387335, 464802, 536310, 697203, 774670, 804465, 1162005, 1394406, 1608930, 2091609, 2324010, 3486015, 4183218, 6972030, 10458045, 20916090]

約数ペア:

[(1, 20916090), (2, 10458045), (3, 6972030), (5, 4183218), (6, 3486015), (9, 2324010), (10, 2091609), (13, 1608930), (15, 1394406), (18, 1162005), (26, 804465), (27, 774670), (30, 697203), (39, 536310), (45, 464802), (54, 387335), (59, 354510), (65, 321786), (78, 268155), (90, 232401), (101, 207090), (117, 178770), (118, 177255), (130, 160893), (135, 154934), (177, 118170), (195, 107262), (202, 103545), (234, 89385), (270, 77467), (295, 70902), (303, 69030), (351, 59590), (354, 59085), (390, 53631), (505, 41418), (531, 39390), (585, 35754), (590, 35451), (606, 34515), (702, 29795), (767, 27270), (885, 23634), (909, 23010), (1010, 20709), (1062, 19695), (1170, 17877), (1313, 15930), (1515, 13806), (1534, 13635), (1593, 13130), (1755, 11918), (1770, 11817), (1818, 11505), (2301, 9090), (2626, 7965), (2655, 7878), (2727, 7670), (3030, 6903), (3186, 6565), (3510, 5959), (3835, 5454), (3939, 5310), (4545, 4602)]