398750660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23539}}^1$

素因数の和:23577

約数の個数: 72

約数和(自身を含む): 1051955520

約数和(自身を除く): 653204860

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1210, 1540, 1694, 2420, 3388, 4235, 8470, 16940, 23539, 47078, 94156, 117695, 164773, 235390, 258929, 329546, 470780, 517858, 659092, 823865, 1035716, 1294645, 1647730, 1812503, 2589290, 2848219, 3295460, 3625006, 5178580, 5696438, 7250012, 9062515, 11392876, 14241095, 18125030, 19937533, 28482190, 36250060, 39875066, 56964380, 79750132, 99687665, 199375330, 398750660]

約数ペア:

[(1, 398750660), (2, 199375330), (4, 99687665), (5, 79750132), (7, 56964380), (10, 39875066), (11, 36250060), (14, 28482190), (20, 19937533), (22, 18125030), (28, 14241095), (35, 11392876), (44, 9062515), (55, 7250012), (70, 5696438), (77, 5178580), (110, 3625006), (121, 3295460), (140, 2848219), (154, 2589290), (220, 1812503), (242, 1647730), (308, 1294645), (385, 1035716), (484, 823865), (605, 659092), (770, 517858), (847, 470780), (1210, 329546), (1540, 258929), (1694, 235390), (2420, 164773), (3388, 117695), (4235, 94156), (8470, 47078), (16940, 23539)]