418992016

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{271}}^1\times {\mathrm{1361}}^1$

素因数の和:1711

約数の個数: 40

約数和(自身を含む): 826875648

約数和(自身を除く): 407883632

約数列:

[1, 2, 4, 8, 16, 71, 142, 271, 284, 542, 568, 1084, 1136, 1361, 2168, 2722, 4336, 5444, 10888, 19241, 21776, 38482, 76964, 96631, 153928, 193262, 307856, 368831, 386524, 737662, 773048, 1475324, 1546096, 2950648, 5901296, 26187001, 52374002, 104748004, 209496008, 418992016]

約数ペア:

[(1, 418992016), (2, 209496008), (4, 104748004), (8, 52374002), (16, 26187001), (71, 5901296), (142, 2950648), (271, 1546096), (284, 1475324), (542, 773048), (568, 737662), (1084, 386524), (1136, 368831), (1361, 307856), (2168, 193262), (2722, 153928), (4336, 96631), (5444, 76964), (10888, 38482), (19241, 21776)]