20291700720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{201787}}^1$

素因数の和:202222

約数の個数: 80

約数和(自身を含む): 63054714240

約数和(自身を除く): 42763013520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 419, 838, 1257, 1676, 2095, 2514, 3352, 4190, 5028, 6285, 6704, 8380, 10056, 12570, 16760, 20112, 25140, 33520, 50280, 100560, 201787, 403574, 605361, 807148, 1008935, 1210722, 1614296, 2017870, 2421444, 3026805, 3228592, 4035740, 4842888, 6053610, 8071480, 9685776, 12107220, 16142960, 24214440, 48428880, 84548753, 169097506, 253646259, 338195012, 422743765, 507292518, 676390024, 845487530, 1014585036, 1268231295, 1352780048, 1690975060, 2029170072, 2536462590, 3381950120, 4058340144, 5072925180, 6763900240, 10145850360, 20291700720]

約数ペア:

[(1, 20291700720), (2, 10145850360), (3, 6763900240), (4, 5072925180), (5, 4058340144), (6, 3381950120), (8, 2536462590), (10, 2029170072), (12, 1690975060), (15, 1352780048), (16, 1268231295), (20, 1014585036), (24, 845487530), (30, 676390024), (40, 507292518), (48, 422743765), (60, 338195012), (80, 253646259), (120, 169097506), (240, 84548753), (419, 48428880), (838, 24214440), (1257, 16142960), (1676, 12107220), (2095, 9685776), (2514, 8071480), (3352, 6053610), (4190, 4842888), (5028, 4035740), (6285, 3228592), (6704, 3026805), (8380, 2421444), (10056, 2017870), (12570, 1614296), (16760, 1210722), (20112, 1008935), (25140, 807148), (33520, 605361), (50280, 403574), (100560, 201787)]