8158420

素因数分解:

$2^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{659}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 17186400

約数和(自身を除く): 9027980

約数列:

[1, 2, 4, 5, 10, 20, 619, 659, 1238, 1318, 2476, 2636, 3095, 3295, 6190, 6590, 12380, 13180, 407921, 815842, 1631684, 2039605, 4079210, 8158420]

約数ペア:

[(1, 8158420), (2, 4079210), (4, 2039605), (5, 1631684), (10, 815842), (20, 407921), (619, 13180), (659, 12380), (1238, 6590), (1318, 6190), (2476, 3295), (2636, 3095)]