21548880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{173}}^2$

素因数の和:365

約数の個数: 90

約数和(自身を含む): 72789054

約数和(自身を除く): 51240174

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 173, 180, 240, 346, 360, 519, 692, 720, 865, 1038, 1384, 1557, 1730, 2076, 2595, 2768, 3114, 3460, 4152, 5190, 6228, 6920, 7785, 8304, 10380, 12456, 13840, 15570, 20760, 24912, 29929, 31140, 41520, 59858, 62280, 89787, 119716, 124560, 149645, 179574, 239432, 269361, 299290, 359148, 448935, 478864, 538722, 598580, 718296, 897870, 1077444, 1197160, 1346805, 1436592, 1795740, 2154888, 2394320, 2693610, 3591480, 4309776, 5387220, 7182960, 10774440, 21548880]

約数ペア:

[(1, 21548880), (2, 10774440), (3, 7182960), (4, 5387220), (5, 4309776), (6, 3591480), (8, 2693610), (9, 2394320), (10, 2154888), (12, 1795740), (15, 1436592), (16, 1346805), (18, 1197160), (20, 1077444), (24, 897870), (30, 718296), (36, 598580), (40, 538722), (45, 478864), (48, 448935), (60, 359148), (72, 299290), (80, 269361), (90, 239432), (120, 179574), (144, 149645), (173, 124560), (180, 119716), (240, 89787), (346, 62280), (360, 59858), (519, 41520), (692, 31140), (720, 29929), (865, 24912), (1038, 20760), (1384, 15570), (1557, 13840), (1730, 12456), (2076, 10380), (2595, 8304), (2768, 7785), (3114, 6920), (3460, 6228), (4152, 5190)]