140503580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{311}}^1\times {\mathrm{461}}^1$

素因数の和:795

約数の個数: 72

約数和(自身を含む): 345080736

約数和(自身を除く): 204577156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 311, 461, 490, 622, 922, 980, 1244, 1555, 1844, 2177, 2305, 3110, 3227, 4354, 4610, 6220, 6454, 8708, 9220, 10885, 12908, 15239, 16135, 21770, 22589, 30478, 32270, 43540, 45178, 60956, 64540, 76195, 90356, 112945, 143371, 152390, 225890, 286742, 304780, 451780, 573484, 716855, 1003597, 1433710, 2007194, 2867420, 4014388, 5017985, 7025179, 10035970, 14050358, 20071940, 28100716, 35125895, 70251790, 140503580]

約数ペア:

[(1, 140503580), (2, 70251790), (4, 35125895), (5, 28100716), (7, 20071940), (10, 14050358), (14, 10035970), (20, 7025179), (28, 5017985), (35, 4014388), (49, 2867420), (70, 2007194), (98, 1433710), (140, 1003597), (196, 716855), (245, 573484), (311, 451780), (461, 304780), (490, 286742), (622, 225890), (922, 152390), (980, 143371), (1244, 112945), (1555, 90356), (1844, 76195), (2177, 64540), (2305, 60956), (3110, 45178), (3227, 43540), (4354, 32270), (4610, 30478), (6220, 22589), (6454, 21770), (8708, 16135), (9220, 15239), (10885, 12908)]