208831376

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:424

約数の個数: 80

約数和(自身を含む): 454970880

約数和(自身を除く): 246139504

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 139, 208, 233, 248, 278, 403, 466, 496, 556, 806, 932, 1112, 1612, 1807, 1864, 2224, 3029, 3224, 3614, 3728, 4309, 6058, 6448, 7223, 7228, 8618, 12116, 14446, 14456, 17236, 24232, 28892, 28912, 32387, 34472, 48464, 56017, 57784, 64774, 68944, 93899, 112034, 115568, 129548, 187798, 224068, 259096, 375596, 421031, 448136, 518192, 751192, 842062, 896272, 1003997, 1502384, 1684124, 2007994, 3368248, 4015988, 6736496, 8031976, 13051961, 16063952, 26103922, 52207844, 104415688, 208831376]

約数ペア:

[(1, 208831376), (2, 104415688), (4, 52207844), (8, 26103922), (13, 16063952), (16, 13051961), (26, 8031976), (31, 6736496), (52, 4015988), (62, 3368248), (104, 2007994), (124, 1684124), (139, 1502384), (208, 1003997), (233, 896272), (248, 842062), (278, 751192), (403, 518192), (466, 448136), (496, 421031), (556, 375596), (806, 259096), (932, 224068), (1112, 187798), (1612, 129548), (1807, 115568), (1864, 112034), (2224, 93899), (3029, 68944), (3224, 64774), (3614, 57784), (3728, 56017), (4309, 48464), (6058, 34472), (6448, 32387), (7223, 28912), (7228, 28892), (8618, 24232), (12116, 17236), (14446, 14456)]