15712420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1249}}^1$

素因数の和:1312

約数の個数: 48

約数和(自身を含む): 35910000

約数和(自身を除く): 20197580

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 148, 170, 185, 340, 370, 629, 740, 1249, 1258, 2498, 2516, 3145, 4996, 6245, 6290, 12490, 12580, 21233, 24980, 42466, 46213, 84932, 92426, 106165, 184852, 212330, 231065, 424660, 462130, 785621, 924260, 1571242, 3142484, 3928105, 7856210, 15712420]

約数ペア:

[(1, 15712420), (2, 7856210), (4, 3928105), (5, 3142484), (10, 1571242), (17, 924260), (20, 785621), (34, 462130), (37, 424660), (68, 231065), (74, 212330), (85, 184852), (148, 106165), (170, 92426), (185, 84932), (340, 46213), (370, 42466), (629, 24980), (740, 21233), (1249, 12580), (1258, 12490), (2498, 6290), (2516, 6245), (3145, 4996)]