20115270

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{367}}^1$

素因数の和:419

約数の個数: 128

約数和(自身を含む): 63590400

約数和(自身を除く): 43475130

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 29, 30, 35, 42, 45, 54, 58, 63, 70, 87, 90, 105, 126, 135, 145, 174, 189, 203, 210, 261, 270, 290, 315, 367, 378, 406, 435, 522, 609, 630, 734, 783, 870, 945, 1015, 1101, 1218, 1305, 1566, 1827, 1835, 1890, 2030, 2202, 2569, 2610, 3045, 3303, 3654, 3670, 3915, 5138, 5481, 5505, 6090, 6606, 7707, 7830, 9135, 9909, 10643, 10962, 11010, 12845, 15414, 16515, 18270, 19818, 21286, 23121, 25690, 27405, 31929, 33030, 38535, 46242, 49545, 53215, 54810, 63858, 69363, 74501, 77070, 95787, 99090, 106430, 115605, 138726, 149002, 159645, 191574, 223503, 231210, 287361, 319290, 346815, 372505, 447006, 478935, 574722, 670509, 693630, 745010, 957870, 1117515, 1341018, 1436805, 2011527, 2235030, 2873610, 3352545, 4023054, 6705090, 10057635, 20115270]

約数ペア:

[(1, 20115270), (2, 10057635), (3, 6705090), (5, 4023054), (6, 3352545), (7, 2873610), (9, 2235030), (10, 2011527), (14, 1436805), (15, 1341018), (18, 1117515), (21, 957870), (27, 745010), (29, 693630), (30, 670509), (35, 574722), (42, 478935), (45, 447006), (54, 372505), (58, 346815), (63, 319290), (70, 287361), (87, 231210), (90, 223503), (105, 191574), (126, 159645), (135, 149002), (145, 138726), (174, 115605), (189, 106430), (203, 99090), (210, 95787), (261, 77070), (270, 74501), (290, 69363), (315, 63858), (367, 54810), (378, 53215), (406, 49545), (435, 46242), (522, 38535), (609, 33030), (630, 31929), (734, 27405), (783, 25690), (870, 23121), (945, 21286), (1015, 19818), (1101, 18270), (1218, 16515), (1305, 15414), (1566, 12845), (1827, 11010), (1835, 10962), (1890, 10643), (2030, 9909), (2202, 9135), (2569, 7830), (2610, 7707), (3045, 6606), (3303, 6090), (3654, 5505), (3670, 5481), (3915, 5138)]