18971260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 50577408

約数和(自身を除く): 31606148

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 97, 110, 127, 140, 154, 194, 220, 254, 308, 385, 388, 485, 508, 635, 679, 770, 889, 970, 1067, 1270, 1358, 1397, 1540, 1778, 1940, 2134, 2540, 2716, 2794, 3395, 3556, 4268, 4445, 5335, 5588, 6790, 6985, 7469, 8890, 9779, 10670, 12319, 13580, 13970, 14938, 17780, 19558, 21340, 24638, 27940, 29876, 37345, 39116, 48895, 49276, 61595, 74690, 86233, 97790, 123190, 135509, 149380, 172466, 195580, 246380, 271018, 344932, 431165, 542036, 677545, 862330, 948563, 1355090, 1724660, 1897126, 2710180, 3794252, 4742815, 9485630, 18971260]

約数ペア:

[(1, 18971260), (2, 9485630), (4, 4742815), (5, 3794252), (7, 2710180), (10, 1897126), (11, 1724660), (14, 1355090), (20, 948563), (22, 862330), (28, 677545), (35, 542036), (44, 431165), (55, 344932), (70, 271018), (77, 246380), (97, 195580), (110, 172466), (127, 149380), (140, 135509), (154, 123190), (194, 97790), (220, 86233), (254, 74690), (308, 61595), (385, 49276), (388, 48895), (485, 39116), (508, 37345), (635, 29876), (679, 27940), (770, 24638), (889, 21340), (970, 19558), (1067, 17780), (1270, 14938), (1358, 13970), (1397, 13580), (1540, 12319), (1778, 10670), (1940, 9779), (2134, 8890), (2540, 7469), (2716, 6985), (2794, 6790), (3395, 5588), (3556, 5335), (4268, 4445)]