20149149356

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{440669}}^1$

素因数の和:440774

約数の個数: 48

約数和(自身を含む): 42642754560

約数和(自身を除く): 22493605204

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 71, 92, 142, 161, 284, 322, 497, 644, 994, 1633, 1988, 3266, 6532, 11431, 22862, 45724, 440669, 881338, 1762676, 3084683, 6169366, 10135387, 12338732, 20270774, 31287499, 40541548, 62574998, 70947709, 125149996, 141895418, 219012493, 283790836, 438024986, 719612477, 876049972, 1439224954, 2878449908, 5037287339, 10074574678, 20149149356]

約数ペア:

[(1, 20149149356), (2, 10074574678), (4, 5037287339), (7, 2878449908), (14, 1439224954), (23, 876049972), (28, 719612477), (46, 438024986), (71, 283790836), (92, 219012493), (142, 141895418), (161, 125149996), (284, 70947709), (322, 62574998), (497, 40541548), (644, 31287499), (994, 20270774), (1633, 12338732), (1988, 10135387), (3266, 6169366), (6532, 3084683), (11431, 1762676), (22862, 881338), (45724, 440669)]