251017260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{321817}}^1$

素因数の和:321842

約数の個数: 48

約数和(自身を含む): 756915936

約数和(自身を除く): 505898676

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 321817, 643634, 965451, 1287268, 1609085, 1930902, 3218170, 3861804, 4183621, 4827255, 6436340, 8367242, 9654510, 12550863, 16734484, 19309020, 20918105, 25101726, 41836210, 50203452, 62754315, 83672420, 125508630, 251017260]

約数ペア:

[(1, 251017260), (2, 125508630), (3, 83672420), (4, 62754315), (5, 50203452), (6, 41836210), (10, 25101726), (12, 20918105), (13, 19309020), (15, 16734484), (20, 12550863), (26, 9654510), (30, 8367242), (39, 6436340), (52, 4827255), (60, 4183621), (65, 3861804), (78, 3218170), (130, 1930902), (156, 1609085), (195, 1287268), (260, 965451), (390, 643634), (780, 321817)]