201587920

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:584

約数の個数: 80

約数和(自身を含む): 482268240

約数和(自身を除く): 280680320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 101, 122, 202, 244, 305, 404, 409, 488, 505, 610, 808, 818, 976, 1010, 1220, 1616, 1636, 2020, 2045, 2440, 3272, 4040, 4090, 4880, 6161, 6544, 8080, 8180, 12322, 16360, 24644, 24949, 30805, 32720, 41309, 49288, 49898, 61610, 82618, 98576, 99796, 123220, 124745, 165236, 199592, 206545, 246440, 249490, 330472, 399184, 413090, 492880, 498980, 660944, 826180, 997960, 1652360, 1995920, 2519849, 3304720, 5039698, 10079396, 12599245, 20158792, 25198490, 40317584, 50396980, 100793960, 201587920]

約数ペア:

[(1, 201587920), (2, 100793960), (4, 50396980), (5, 40317584), (8, 25198490), (10, 20158792), (16, 12599245), (20, 10079396), (40, 5039698), (61, 3304720), (80, 2519849), (101, 1995920), (122, 1652360), (202, 997960), (244, 826180), (305, 660944), (404, 498980), (409, 492880), (488, 413090), (505, 399184), (610, 330472), (808, 249490), (818, 246440), (976, 206545), (1010, 199592), (1220, 165236), (1616, 124745), (1636, 123220), (2020, 99796), (2045, 98576), (2440, 82618), (3272, 61610), (4040, 49898), (4090, 49288), (4880, 41309), (6161, 32720), (6544, 30805), (8080, 24949), (8180, 24644), (12322, 16360)]