20249952016

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{99397}}^1$

素因数の和:99536

約数の個数: 80

約数和(自身を含む): 47920968576

約数和(自身を除く): 27671016560

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 107, 112, 119, 136, 214, 238, 272, 428, 476, 749, 856, 952, 1498, 1712, 1819, 1904, 2996, 3638, 5992, 7276, 11984, 12733, 14552, 25466, 29104, 50932, 99397, 101864, 198794, 203728, 397588, 695779, 795176, 1391558, 1590352, 1689749, 2783116, 3379498, 5566232, 6758996, 10635479, 11132464, 11828243, 13517992, 21270958, 23656486, 27035984, 42541916, 47312972, 74448353, 85083832, 94625944, 148896706, 170167664, 180803143, 189251888, 297793412, 361606286, 595586824, 723212572, 1191173648, 1265622001, 1446425144, 2531244002, 2892850288, 5062488004, 10124976008, 20249952016]

約数ペア:

[(1, 20249952016), (2, 10124976008), (4, 5062488004), (7, 2892850288), (8, 2531244002), (14, 1446425144), (16, 1265622001), (17, 1191173648), (28, 723212572), (34, 595586824), (56, 361606286), (68, 297793412), (107, 189251888), (112, 180803143), (119, 170167664), (136, 148896706), (214, 94625944), (238, 85083832), (272, 74448353), (428, 47312972), (476, 42541916), (749, 27035984), (856, 23656486), (952, 21270958), (1498, 13517992), (1712, 11828243), (1819, 11132464), (1904, 10635479), (2996, 6758996), (3638, 5566232), (5992, 3379498), (7276, 2783116), (11984, 1689749), (12733, 1590352), (14552, 1391558), (25466, 795176), (29104, 695779), (50932, 397588), (99397, 203728), (101864, 198794)]