19715200

素因数分解:

$2^7\times 5^2\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:186

約数の個数: 96

約数和(自身を含む): 49991220

約数和(自身を除く): 30276020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 61, 64, 80, 100, 101, 122, 128, 160, 200, 202, 244, 305, 320, 400, 404, 488, 505, 610, 640, 800, 808, 976, 1010, 1220, 1525, 1600, 1616, 1952, 2020, 2440, 2525, 3050, 3200, 3232, 3904, 4040, 4880, 5050, 6100, 6161, 6464, 7808, 8080, 9760, 10100, 12200, 12322, 12928, 16160, 19520, 20200, 24400, 24644, 30805, 32320, 39040, 40400, 48800, 49288, 61610, 64640, 80800, 97600, 98576, 123220, 154025, 161600, 195200, 197152, 246440, 308050, 323200, 394304, 492880, 616100, 788608, 985760, 1232200, 1971520, 2464400, 3943040, 4928800, 9857600, 19715200]

約数ペア:

[(1, 19715200), (2, 9857600), (4, 4928800), (5, 3943040), (8, 2464400), (10, 1971520), (16, 1232200), (20, 985760), (25, 788608), (32, 616100), (40, 492880), (50, 394304), (61, 323200), (64, 308050), (80, 246440), (100, 197152), (101, 195200), (122, 161600), (128, 154025), (160, 123220), (200, 98576), (202, 97600), (244, 80800), (305, 64640), (320, 61610), (400, 49288), (404, 48800), (488, 40400), (505, 39040), (610, 32320), (640, 30805), (800, 24644), (808, 24400), (976, 20200), (1010, 19520), (1220, 16160), (1525, 12928), (1600, 12322), (1616, 12200), (1952, 10100), (2020, 9760), (2440, 8080), (2525, 7808), (3050, 6464), (3200, 6161), (3232, 6100), (3904, 5050), (4040, 4880)]