71430320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{68683}}^1$

素因数の和:68709

約数の個数: 40

約数和(自身を含む): 178853136

約数和(自身を除く): 107422816

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 68683, 137366, 274732, 343415, 549464, 686830, 892879, 1098928, 1373660, 1785758, 2747320, 3571516, 4464395, 5494640, 7143032, 8928790, 14286064, 17857580, 35715160, 71430320]

約数ペア:

[(1, 71430320), (2, 35715160), (4, 17857580), (5, 14286064), (8, 8928790), (10, 7143032), (13, 5494640), (16, 4464395), (20, 3571516), (26, 2747320), (40, 1785758), (52, 1373660), (65, 1098928), (80, 892879), (104, 686830), (130, 549464), (208, 343415), (260, 274732), (520, 137366), (1040, 68683)]