21425760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14879}}^1$

素因数の和:14900

約数の個数: 72

約数和(自身を含む): 73120320

約数和(自身を除く): 51694560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14879, 29758, 44637, 59516, 74395, 89274, 119032, 133911, 148790, 178548, 223185, 238064, 267822, 297580, 357096, 446370, 476128, 535644, 595160, 669555, 714192, 892740, 1071288, 1190320, 1339110, 1428384, 1785480, 2142576, 2380640, 2678220, 3570960, 4285152, 5356440, 7141920, 10712880, 21425760]

約数ペア:

[(1, 21425760), (2, 10712880), (3, 7141920), (4, 5356440), (5, 4285152), (6, 3570960), (8, 2678220), (9, 2380640), (10, 2142576), (12, 1785480), (15, 1428384), (16, 1339110), (18, 1190320), (20, 1071288), (24, 892740), (30, 714192), (32, 669555), (36, 595160), (40, 535644), (45, 476128), (48, 446370), (60, 357096), (72, 297580), (80, 267822), (90, 238064), (96, 223185), (120, 178548), (144, 148790), (160, 133911), (180, 119032), (240, 89274), (288, 74395), (360, 59516), (480, 44637), (720, 29758), (1440, 14879)]