251016980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{769}}^1\times {\mathrm{859}}^1$

素因数の和:1656

約数の個数: 48

約数和(自身を含む): 556248000

約数和(自身を除く): 305231020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 769, 859, 1538, 1718, 3076, 3436, 3845, 4295, 7690, 8590, 14611, 15380, 16321, 17180, 29222, 32642, 58444, 65284, 73055, 81605, 146110, 163210, 292220, 326420, 660571, 1321142, 2642284, 3302855, 6605710, 12550849, 13211420, 25101698, 50203396, 62754245, 125508490, 251016980]

約数ペア:

[(1, 251016980), (2, 125508490), (4, 62754245), (5, 50203396), (10, 25101698), (19, 13211420), (20, 12550849), (38, 6605710), (76, 3302855), (95, 2642284), (190, 1321142), (380, 660571), (769, 326420), (859, 292220), (1538, 163210), (1718, 146110), (3076, 81605), (3436, 73055), (3845, 65284), (4295, 58444), (7690, 32642), (8590, 29222), (14611, 17180), (15380, 16321)]