188781660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1621}}^1$

素因数の和:2283

約数の個数: 72

約数和(自身を含む): 573876576

約数和(自身を除く): 385094916

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 647, 1294, 1621, 1941, 2588, 3235, 3242, 3882, 4863, 5823, 6470, 6484, 7764, 8105, 9705, 9726, 11646, 12940, 14589, 16210, 19410, 19452, 23292, 24315, 29115, 29178, 32420, 38820, 48630, 58230, 58356, 72945, 97260, 116460, 145890, 291780, 1048787, 2097574, 3146361, 4195148, 5243935, 6292722, 9439083, 10487870, 12585444, 15731805, 18878166, 20975740, 31463610, 37756332, 47195415, 62927220, 94390830, 188781660]

約数ペア:

[(1, 188781660), (2, 94390830), (3, 62927220), (4, 47195415), (5, 37756332), (6, 31463610), (9, 20975740), (10, 18878166), (12, 15731805), (15, 12585444), (18, 10487870), (20, 9439083), (30, 6292722), (36, 5243935), (45, 4195148), (60, 3146361), (90, 2097574), (180, 1048787), (647, 291780), (1294, 145890), (1621, 116460), (1941, 97260), (2588, 72945), (3235, 58356), (3242, 58230), (3882, 48630), (4863, 38820), (5823, 32420), (6470, 29178), (6484, 29115), (7764, 24315), (8105, 23292), (9705, 19452), (9726, 19410), (11646, 16210), (12940, 14589)]