21289680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29569}}^1$

素因数の和:29588

約数の個数: 60

約数和(自身を含む): 71500260

約数和(自身を除く): 50210580

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, 180, 240, 360, 720, 29569, 59138, 88707, 118276, 147845, 177414, 236552, 266121, 295690, 354828, 443535, 473104, 532242, 591380, 709656, 887070, 1064484, 1182760, 1330605, 1419312, 1774140, 2128968, 2365520, 2661210, 3548280, 4257936, 5322420, 7096560, 10644840, 21289680]

約数ペア:

[(1, 21289680), (2, 10644840), (3, 7096560), (4, 5322420), (5, 4257936), (6, 3548280), (8, 2661210), (9, 2365520), (10, 2128968), (12, 1774140), (15, 1419312), (16, 1330605), (18, 1182760), (20, 1064484), (24, 887070), (30, 709656), (36, 591380), (40, 532242), (45, 473104), (48, 443535), (60, 354828), (72, 295690), (80, 266121), (90, 236552), (120, 177414), (144, 147845), (180, 118276), (240, 88707), (360, 59138), (720, 29569)]