20809320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{3539}}^1$

素因数の和:3567

約数の個数: 96

約数和(自身を含む): 72640800

約数和(自身を除く): 51831480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 3539, 5880, 7078, 10617, 14156, 17695, 21234, 24773, 28312, 35390, 42468, 49546, 53085, 70780, 74319, 84936, 99092, 106170, 123865, 141560, 148638, 173411, 198184, 212340, 247730, 297276, 346822, 371595, 424680, 495460, 520233, 594552, 693644, 743190, 867055, 990920, 1040466, 1387288, 1486380, 1734110, 2080932, 2601165, 2972760, 3468220, 4161864, 5202330, 6936440, 10404660, 20809320]

約数ペア:

[(1, 20809320), (2, 10404660), (3, 6936440), (4, 5202330), (5, 4161864), (6, 3468220), (7, 2972760), (8, 2601165), (10, 2080932), (12, 1734110), (14, 1486380), (15, 1387288), (20, 1040466), (21, 990920), (24, 867055), (28, 743190), (30, 693644), (35, 594552), (40, 520233), (42, 495460), (49, 424680), (56, 371595), (60, 346822), (70, 297276), (84, 247730), (98, 212340), (105, 198184), (120, 173411), (140, 148638), (147, 141560), (168, 123865), (196, 106170), (210, 99092), (245, 84936), (280, 74319), (294, 70780), (392, 53085), (420, 49546), (490, 42468), (588, 35390), (735, 28312), (840, 24773), (980, 21234), (1176, 17695), (1470, 14156), (1960, 10617), (2940, 7078), (3539, 5880)]