21220560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29473}}^1$

素因数の和:29492

約数の個数: 60

約数和(自身を含む): 71268132

約数和(自身を除く): 50047572

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, 29473, 58946, 88419, 117892, 147365, 176838, 235784, 265257, 294730, 353676, 442095, 471568, 530514, 589460, 707352, 884190, 1061028, 1178920, 1326285, 1414704, 1768380, 2122056, 2357840, 2652570, 3536760, 4244112, 5305140, 7073520, 10610280, 21220560]

約数ペア:

[(1, 21220560), (2, 10610280), (3, 7073520), (4, 5305140), (5, 4244112), (6, 3536760), (8, 2652570), (9, 2357840), (10, 2122056), (12, 1768380), (15, 1414704), (16, 1326285), (18, 1178920), (20, 1061028), (24, 884190), (30, 707352), (36, 589460), (40, 530514), (45, 471568), (48, 442095), (60, 353676), (72, 294730), (80, 265257), (90, 235784), (120, 176838), (144, 147365), (180, 117892), (240, 88419), (360, 58946), (720, 29473)]