1306778240

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{49801}}^1$

素因数の和:49861

約数の個数: 64

約数和(自身を含む): 3200276520

約数和(自身を除く): 1893498280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 320, 328, 410, 640, 656, 820, 1312, 1640, 2624, 3280, 5248, 6560, 13120, 26240, 49801, 99602, 199204, 249005, 398408, 498010, 796816, 996020, 1593632, 1992040, 2041841, 3187264, 3984080, 4083682, 6374528, 7968160, 8167364, 10209205, 15936320, 16334728, 20418410, 31872640, 32669456, 40836820, 65338912, 81673640, 130677824, 163347280, 261355648, 326694560, 653389120, 1306778240]

約数ペア:

[(1, 1306778240), (2, 653389120), (4, 326694560), (5, 261355648), (8, 163347280), (10, 130677824), (16, 81673640), (20, 65338912), (32, 40836820), (40, 32669456), (41, 31872640), (64, 20418410), (80, 16334728), (82, 15936320), (128, 10209205), (160, 8167364), (164, 7968160), (205, 6374528), (320, 4083682), (328, 3984080), (410, 3187264), (640, 2041841), (656, 1992040), (820, 1593632), (1312, 996020), (1640, 796816), (2624, 498010), (3280, 398408), (5248, 249005), (6560, 199204), (13120, 99602), (26240, 49801)]