2008720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1$

素因数の和:248

約数の個数: 80

約数和(自身を含む): 5678208

約数和(自身を除く): 3669488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 211, 238, 272, 280, 340, 422, 476, 560, 595, 680, 844, 952, 1055, 1190, 1360, 1477, 1688, 1904, 2110, 2380, 2954, 3376, 3587, 4220, 4760, 5908, 7174, 7385, 8440, 9520, 11816, 14348, 14770, 16880, 17935, 23632, 25109, 28696, 29540, 35870, 50218, 57392, 59080, 71740, 100436, 118160, 125545, 143480, 200872, 251090, 286960, 401744, 502180, 1004360, 2008720]

約数ペア:

[(1, 2008720), (2, 1004360), (4, 502180), (5, 401744), (7, 286960), (8, 251090), (10, 200872), (14, 143480), (16, 125545), (17, 118160), (20, 100436), (28, 71740), (34, 59080), (35, 57392), (40, 50218), (56, 35870), (68, 29540), (70, 28696), (80, 25109), (85, 23632), (112, 17935), (119, 16880), (136, 14770), (140, 14348), (170, 11816), (211, 9520), (238, 8440), (272, 7385), (280, 7174), (340, 5908), (422, 4760), (476, 4220), (560, 3587), (595, 3376), (680, 2954), (844, 2380), (952, 2110), (1055, 1904), (1190, 1688), (1360, 1477)]