21546480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{5281}}^1$

素因数の和:5314

約数の個数: 80

約数和(自身を含む): 70736544

約数和(自身を除く): 49190064

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 5281, 10562, 15843, 21124, 26405, 31686, 42248, 52810, 63372, 79215, 84496, 89777, 105620, 126744, 158430, 179554, 211240, 253488, 269331, 316860, 359108, 422480, 448885, 538662, 633720, 718216, 897770, 1077324, 1267440, 1346655, 1436432, 1795540, 2154648, 2693310, 3591080, 4309296, 5386620, 7182160, 10773240, 21546480]

約数ペア:

[(1, 21546480), (2, 10773240), (3, 7182160), (4, 5386620), (5, 4309296), (6, 3591080), (8, 2693310), (10, 2154648), (12, 1795540), (15, 1436432), (16, 1346655), (17, 1267440), (20, 1077324), (24, 897770), (30, 718216), (34, 633720), (40, 538662), (48, 448885), (51, 422480), (60, 359108), (68, 316860), (80, 269331), (85, 253488), (102, 211240), (120, 179554), (136, 158430), (170, 126744), (204, 105620), (240, 89777), (255, 84496), (272, 79215), (340, 63372), (408, 52810), (510, 42248), (680, 31686), (816, 26405), (1020, 21124), (1360, 15843), (2040, 10562), (4080, 5281)]