129632840

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{9791}}^1$

素因数の和:10133

約数の個数: 32

約数和(自身を含む): 292584960

約数和(自身を除く): 162952120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 6620, 9791, 13240, 19582, 39164, 48955, 78328, 97910, 195820, 391640, 3240821, 6481642, 12963284, 16204105, 25926568, 32408210, 64816420, 129632840]

約数ペア:

[(1, 129632840), (2, 64816420), (4, 32408210), (5, 25926568), (8, 16204105), (10, 12963284), (20, 6481642), (40, 3240821), (331, 391640), (662, 195820), (1324, 97910), (1655, 78328), (2648, 48955), (3310, 39164), (6620, 19582), (9791, 13240)]