84789940

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{769}}^1$

素因数の和:964

約数の個数: 48

約数和(自身を含む): 184338000

約数和(自身を除く): 99548060

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 149, 185, 298, 370, 596, 740, 745, 769, 1490, 1538, 2980, 3076, 3845, 5513, 7690, 11026, 15380, 22052, 27565, 28453, 55130, 56906, 110260, 113812, 114581, 142265, 229162, 284530, 458324, 569060, 572905, 1145810, 2291620, 4239497, 8478994, 16957988, 21197485, 42394970, 84789940]

約数ペア:

[(1, 84789940), (2, 42394970), (4, 21197485), (5, 16957988), (10, 8478994), (20, 4239497), (37, 2291620), (74, 1145810), (148, 572905), (149, 569060), (185, 458324), (298, 284530), (370, 229162), (596, 142265), (740, 114581), (745, 113812), (769, 110260), (1490, 56906), (1538, 55130), (2980, 28453), (3076, 27565), (3845, 22052), (5513, 15380), (7690, 11026)]