247885740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{3137}}^1$

素因数の和:3591

約数の個数: 72

約数和(自身を含む): 753873120

約数和(自身を除く): 505987380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 439, 878, 1317, 1756, 2195, 2634, 3137, 3951, 4390, 5268, 6274, 6585, 7902, 8780, 9411, 12548, 13170, 15685, 15804, 18822, 19755, 26340, 28233, 31370, 37644, 39510, 47055, 56466, 62740, 79020, 94110, 112932, 141165, 188220, 282330, 564660, 1377143, 2754286, 4131429, 5508572, 6885715, 8262858, 12394287, 13771430, 16525716, 20657145, 24788574, 27542860, 41314290, 49577148, 61971435, 82628580, 123942870, 247885740]

約数ペア:

[(1, 247885740), (2, 123942870), (3, 82628580), (4, 61971435), (5, 49577148), (6, 41314290), (9, 27542860), (10, 24788574), (12, 20657145), (15, 16525716), (18, 13771430), (20, 12394287), (30, 8262858), (36, 6885715), (45, 5508572), (60, 4131429), (90, 2754286), (180, 1377143), (439, 564660), (878, 282330), (1317, 188220), (1756, 141165), (2195, 112932), (2634, 94110), (3137, 79020), (3951, 62740), (4390, 56466), (5268, 47055), (6274, 39510), (6585, 37644), (7902, 31370), (8780, 28233), (9411, 26340), (12548, 19755), (13170, 18822), (15685, 15804)]