19489360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22147}}^1$

素因数の和:22171

約数の個数: 40

約数和(自身を含む): 49434336

約数和(自身を除く): 29944976

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 22147, 44294, 88588, 110735, 177176, 221470, 243617, 354352, 442940, 487234, 885880, 974468, 1218085, 1771760, 1948936, 2436170, 3897872, 4872340, 9744680, 19489360]

約数ペア:

[(1, 19489360), (2, 9744680), (4, 4872340), (5, 3897872), (8, 2436170), (10, 1948936), (11, 1771760), (16, 1218085), (20, 974468), (22, 885880), (40, 487234), (44, 442940), (55, 354352), (80, 243617), (88, 221470), (110, 177176), (176, 110735), (220, 88588), (440, 44294), (880, 22147)]