668825248

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{239}}^1$

素因数の和:331

約数の個数: 144

約数和(自身を含む): 1681585920

約数和(自身を除く): 1012760672

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 32, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 224, 239, 248, 364, 403, 416, 434, 478, 496, 728, 806, 868, 956, 961, 992, 1456, 1612, 1673, 1736, 1912, 1922, 2821, 2912, 3107, 3224, 3346, 3472, 3824, 3844, 5642, 6214, 6448, 6692, 6727, 6944, 7409, 7648, 7688, 11284, 12428, 12493, 12896, 13384, 13454, 14818, 15376, 21749, 22568, 24856, 24986, 26768, 26908, 29636, 30752, 43498, 45136, 49712, 49972, 51863, 53536, 53816, 59272, 86996, 87451, 90272, 96317, 99424, 99944, 103726, 107632, 118544, 173992, 174902, 192634, 199888, 207452, 215264, 229679, 237088, 347984, 349804, 385268, 399776, 414904, 459358, 674219, 695968, 699608, 770536, 829808, 918716, 1348438, 1399216, 1541072, 1607753, 1659616, 1837432, 2696876, 2798432, 2985827, 3082144, 3215506, 3674864, 5393752, 5971654, 6431012, 7349728, 10787504, 11943308, 12862024, 20900789, 21575008, 23886616, 25724048, 41801578, 47773232, 51448096, 83603156, 95546464, 167206312, 334412624, 668825248]

約数ペア:

[(1, 668825248), (2, 334412624), (4, 167206312), (7, 95546464), (8, 83603156), (13, 51448096), (14, 47773232), (16, 41801578), (26, 25724048), (28, 23886616), (31, 21575008), (32, 20900789), (52, 12862024), (56, 11943308), (62, 10787504), (91, 7349728), (104, 6431012), (112, 5971654), (124, 5393752), (182, 3674864), (208, 3215506), (217, 3082144), (224, 2985827), (239, 2798432), (248, 2696876), (364, 1837432), (403, 1659616), (416, 1607753), (434, 1541072), (478, 1399216), (496, 1348438), (728, 918716), (806, 829808), (868, 770536), (956, 699608), (961, 695968), (992, 674219), (1456, 459358), (1612, 414904), (1673, 399776), (1736, 385268), (1912, 349804), (1922, 347984), (2821, 237088), (2912, 229679), (3107, 215264), (3224, 207452), (3346, 199888), (3472, 192634), (3824, 174902), (3844, 173992), (5642, 118544), (6214, 107632), (6448, 103726), (6692, 99944), (6727, 99424), (6944, 96317), (7409, 90272), (7648, 87451), (7688, 86996), (11284, 59272), (12428, 53816), (12493, 53536), (12896, 51863), (13384, 49972), (13454, 49712), (14818, 45136), (15376, 43498), (21749, 30752), (22568, 29636), (24856, 26908), (24986, 26768)]