19263860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1787}}^1$

素因数の和:1821

約数の個数: 72

約数和(自身を含む): 51365664

約数和(自身を除く): 32101804

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 1787, 2156, 2695, 3574, 5390, 7148, 8935, 10780, 12509, 17870, 19657, 25018, 35740, 39314, 50036, 62545, 78628, 87563, 98285, 125090, 137599, 175126, 196570, 250180, 275198, 350252, 393140, 437815, 550396, 687995, 875630, 963193, 1375990, 1751260, 1926386, 2751980, 3852772, 4815965, 9631930, 19263860]

約数ペア:

[(1, 19263860), (2, 9631930), (4, 4815965), (5, 3852772), (7, 2751980), (10, 1926386), (11, 1751260), (14, 1375990), (20, 963193), (22, 875630), (28, 687995), (35, 550396), (44, 437815), (49, 393140), (55, 350252), (70, 275198), (77, 250180), (98, 196570), (110, 175126), (140, 137599), (154, 125090), (196, 98285), (220, 87563), (245, 78628), (308, 62545), (385, 50036), (490, 39314), (539, 35740), (770, 25018), (980, 19657), (1078, 17870), (1540, 12509), (1787, 10780), (2156, 8935), (2695, 7148), (3574, 5390)]