271804280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{19927}}^1$

素因数の和:19980

約数の個数: 64

約数和(自身を含む): 688711680

約数和(自身を除く): 416907400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 6820, 13640, 19927, 39854, 79708, 99635, 159416, 199270, 219197, 398540, 438394, 617737, 797080, 876788, 1095985, 1235474, 1753576, 2191970, 2470948, 3088685, 4383940, 4941896, 6177370, 6795107, 8767880, 12354740, 13590214, 24709480, 27180428, 33975535, 54360856, 67951070, 135902140, 271804280]

約数ペア:

[(1, 271804280), (2, 135902140), (4, 67951070), (5, 54360856), (8, 33975535), (10, 27180428), (11, 24709480), (20, 13590214), (22, 12354740), (31, 8767880), (40, 6795107), (44, 6177370), (55, 4941896), (62, 4383940), (88, 3088685), (110, 2470948), (124, 2191970), (155, 1753576), (220, 1235474), (248, 1095985), (310, 876788), (341, 797080), (440, 617737), (620, 438394), (682, 398540), (1240, 219197), (1364, 199270), (1705, 159416), (2728, 99635), (3410, 79708), (6820, 39854), (13640, 19927)]