278760680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:351

約数の個数: 128

約数和(自身を含む): 716636160

約数和(自身を除く): 437875480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 107, 110, 124, 155, 191, 214, 220, 248, 310, 341, 382, 428, 440, 535, 620, 682, 764, 856, 955, 1070, 1177, 1240, 1364, 1528, 1705, 1910, 2101, 2140, 2354, 2728, 3317, 3410, 3820, 4202, 4280, 4708, 5885, 5921, 6634, 6820, 7640, 8404, 9416, 10505, 11770, 11842, 13268, 13640, 16585, 16808, 20437, 21010, 23540, 23684, 26536, 29605, 33170, 36487, 40874, 42020, 47080, 47368, 59210, 65131, 66340, 72974, 81748, 84040, 102185, 118420, 130262, 132680, 145948, 163496, 182435, 204370, 224807, 236840, 260524, 291896, 325655, 364870, 408740, 449614, 521048, 633547, 651310, 729740, 817480, 899228, 1124035, 1267094, 1302620, 1459480, 1798456, 2248070, 2534188, 2605240, 3167735, 4496140, 5068376, 6335470, 6969017, 8992280, 12670940, 13938034, 25341880, 27876068, 34845085, 55752136, 69690170, 139380340, 278760680]

約数ペア:

[(1, 278760680), (2, 139380340), (4, 69690170), (5, 55752136), (8, 34845085), (10, 27876068), (11, 25341880), (20, 13938034), (22, 12670940), (31, 8992280), (40, 6969017), (44, 6335470), (55, 5068376), (62, 4496140), (88, 3167735), (107, 2605240), (110, 2534188), (124, 2248070), (155, 1798456), (191, 1459480), (214, 1302620), (220, 1267094), (248, 1124035), (310, 899228), (341, 817480), (382, 729740), (428, 651310), (440, 633547), (535, 521048), (620, 449614), (682, 408740), (764, 364870), (856, 325655), (955, 291896), (1070, 260524), (1177, 236840), (1240, 224807), (1364, 204370), (1528, 182435), (1705, 163496), (1910, 145948), (2101, 132680), (2140, 130262), (2354, 118420), (2728, 102185), (3317, 84040), (3410, 81748), (3820, 72974), (4202, 66340), (4280, 65131), (4708, 59210), (5885, 47368), (5921, 47080), (6634, 42020), (6820, 40874), (7640, 36487), (8404, 33170), (9416, 29605), (10505, 26536), (11770, 23684), (11842, 23540), (13268, 21010), (13640, 20437), (16585, 16808)]