30719320

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{4243}}^1$

素因数の和:4435

約数の個数: 32

約数和(自身を含む): 69516720

約数和(自身を除く): 38797400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 4243, 7240, 8486, 16972, 21215, 33944, 42430, 84860, 169720, 767983, 1535966, 3071932, 3839915, 6143864, 7679830, 15359660, 30719320]

約数ペア:

[(1, 30719320), (2, 15359660), (4, 7679830), (5, 6143864), (8, 3839915), (10, 3071932), (20, 1535966), (40, 767983), (181, 169720), (362, 84860), (724, 42430), (905, 33944), (1448, 21215), (1810, 16972), (3620, 8486), (4243, 7240)]