20780640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14431}}^1$

素因数の和:14452

約数の個数: 72

約数和(自身を含む): 70918848

約数和(自身を除く): 50138208

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, 14431, 28862, 43293, 57724, 72155, 86586, 115448, 129879, 144310, 173172, 216465, 230896, 259758, 288620, 346344, 432930, 461792, 519516, 577240, 649395, 692688, 865860, 1039032, 1154480, 1298790, 1385376, 1731720, 2078064, 2308960, 2597580, 3463440, 4156128, 5195160, 6926880, 10390320, 20780640]

約数ペア:

[(1, 20780640), (2, 10390320), (3, 6926880), (4, 5195160), (5, 4156128), (6, 3463440), (8, 2597580), (9, 2308960), (10, 2078064), (12, 1731720), (15, 1385376), (16, 1298790), (18, 1154480), (20, 1039032), (24, 865860), (30, 692688), (32, 649395), (36, 577240), (40, 519516), (45, 461792), (48, 432930), (60, 346344), (72, 288620), (80, 259758), (90, 230896), (96, 216465), (120, 173172), (144, 144310), (160, 129879), (180, 115448), (240, 86586), (288, 72155), (360, 57724), (480, 43293), (720, 28862), (1440, 14431)]