21642880

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4831}}^1$

素因数の和:4857

約数の個数: 64

約数和(自身を含む): 59143680

約数和(自身を除く): 37500800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 4831, 9662, 19324, 24155, 33817, 38648, 48310, 67634, 77296, 96620, 135268, 154592, 169085, 193240, 270536, 309184, 338170, 386480, 541072, 618368, 676340, 772960, 1082144, 1352680, 1545920, 2164288, 2705360, 3091840, 4328576, 5410720, 10821440, 21642880]

約数ペア:

[(1, 21642880), (2, 10821440), (4, 5410720), (5, 4328576), (7, 3091840), (8, 2705360), (10, 2164288), (14, 1545920), (16, 1352680), (20, 1082144), (28, 772960), (32, 676340), (35, 618368), (40, 541072), (56, 386480), (64, 338170), (70, 309184), (80, 270536), (112, 193240), (128, 169085), (140, 154592), (160, 135268), (224, 96620), (280, 77296), (320, 67634), (448, 48310), (560, 38648), (640, 33817), (896, 24155), (1120, 19324), (2240, 9662), (4480, 4831)]