15925990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{769}}^1$

素因数の和:904

約数の個数: 32

約数和(自身を含む): 30492000

約数和(自身を除く): 14566010

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 545, 769, 1090, 1538, 2071, 3845, 4142, 7690, 10355, 14611, 20710, 29222, 73055, 83821, 146110, 167642, 419105, 838210, 1592599, 3185198, 7962995, 15925990]

約数ペア:

[(1, 15925990), (2, 7962995), (5, 3185198), (10, 1592599), (19, 838210), (38, 419105), (95, 167642), (109, 146110), (190, 83821), (218, 73055), (545, 29222), (769, 20710), (1090, 14611), (1538, 10355), (2071, 7690), (3845, 4142)]