20168883664

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{313}}^1\times {\mathrm{433}}^1$

素因数の和:956

約数の個数: 80

約数和(自身を含む): 40150180224

約数和(自身を除く): 19981296560

約数列:

[1, 2, 4, 8, 16, 71, 131, 142, 262, 284, 313, 433, 524, 568, 626, 866, 1048, 1136, 1252, 1732, 2096, 2504, 3464, 5008, 6928, 9301, 18602, 22223, 30743, 37204, 41003, 44446, 56723, 61486, 74408, 82006, 88892, 113446, 122972, 135529, 148816, 164012, 177784, 226892, 245944, 271058, 328024, 355568, 453784, 491888, 542116, 656048, 907568, 1084232, 2168464, 2911213, 4027333, 5822426, 8054666, 9622559, 11644852, 16109332, 17754299, 19245118, 23289704, 32218664, 35508598, 38490236, 46579408, 64437328, 71017196, 76980472, 142034392, 153960944, 284068784, 1260555229, 2521110458, 5042220916, 10084441832, 20168883664]

約数ペア:

[(1, 20168883664), (2, 10084441832), (4, 5042220916), (8, 2521110458), (16, 1260555229), (71, 284068784), (131, 153960944), (142, 142034392), (262, 76980472), (284, 71017196), (313, 64437328), (433, 46579408), (524, 38490236), (568, 35508598), (626, 32218664), (866, 23289704), (1048, 19245118), (1136, 17754299), (1252, 16109332), (1732, 11644852), (2096, 9622559), (2504, 8054666), (3464, 5822426), (5008, 4027333), (6928, 2911213), (9301, 2168464), (18602, 1084232), (22223, 907568), (30743, 656048), (37204, 542116), (41003, 491888), (44446, 453784), (56723, 355568), (61486, 328024), (74408, 271058), (82006, 245944), (88892, 226892), (113446, 177784), (122972, 164012), (135529, 148816)]