19985760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13879}}^1$

素因数の和:13900

約数の個数: 72

約数和(自身を含む): 68206320

約数和(自身を除く): 48220560

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, 13879, 27758, 41637, 55516, 69395, 83274, 111032, 124911, 138790, 166548, 208185, 222064, 249822, 277580, 333096, 416370, 444128, 499644, 555160, 624555, 666192, 832740, 999288, 1110320, 1249110, 1332384, 1665480, 1998576, 2220640, 2498220, 3330960, 3997152, 4996440, 6661920, 9992880, 19985760]

約数ペア:

[(1, 19985760), (2, 9992880), (3, 6661920), (4, 4996440), (5, 3997152), (6, 3330960), (8, 2498220), (9, 2220640), (10, 1998576), (12, 1665480), (15, 1332384), (16, 1249110), (18, 1110320), (20, 999288), (24, 832740), (30, 666192), (32, 624555), (36, 555160), (40, 499644), (45, 444128), (48, 416370), (60, 333096), (72, 277580), (80, 249822), (90, 222064), (96, 208185), (120, 166548), (144, 138790), (160, 124911), (180, 111032), (240, 83274), (288, 69395), (360, 55516), (480, 41637), (720, 27758), (1440, 13879)]