31958420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1217}}^1$

素因数の和:1340

約数の個数: 48

約数和(自身を含む): 73050768

約数和(自身を除く): 41092348

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 202, 260, 404, 505, 1010, 1217, 1313, 2020, 2434, 2626, 4868, 5252, 6085, 6565, 12170, 13130, 15821, 24340, 26260, 31642, 63284, 79105, 122917, 158210, 245834, 316420, 491668, 614585, 1229170, 1597921, 2458340, 3195842, 6391684, 7989605, 15979210, 31958420]

約数ペア:

[(1, 31958420), (2, 15979210), (4, 7989605), (5, 6391684), (10, 3195842), (13, 2458340), (20, 1597921), (26, 1229170), (52, 614585), (65, 491668), (101, 316420), (130, 245834), (202, 158210), (260, 122917), (404, 79105), (505, 63284), (1010, 31642), (1217, 26260), (1313, 24340), (2020, 15821), (2434, 13130), (2626, 12170), (4868, 6565), (5252, 6085)]