1278804560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{46877}}^1$

素因数の和:46932

約数の個数: 80

約数和(自身を含む): 3348214272

約数和(自身を除く): 2069409712

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 3410, 5456, 6820, 13640, 27280, 46877, 93754, 187508, 234385, 375016, 468770, 515647, 750032, 937540, 1031294, 1453187, 1875080, 2062588, 2578235, 2906374, 3750160, 4125176, 5156470, 5812748, 7265935, 8250352, 10312940, 11625496, 14531870, 15985057, 20625880, 23250992, 29063740, 31970114, 41251760, 58127480, 63940228, 79925285, 116254960, 127880456, 159850570, 255760912, 319701140, 639402280, 1278804560]

約数ペア:

[(1, 1278804560), (2, 639402280), (4, 319701140), (5, 255760912), (8, 159850570), (10, 127880456), (11, 116254960), (16, 79925285), (20, 63940228), (22, 58127480), (31, 41251760), (40, 31970114), (44, 29063740), (55, 23250992), (62, 20625880), (80, 15985057), (88, 14531870), (110, 11625496), (124, 10312940), (155, 8250352), (176, 7265935), (220, 5812748), (248, 5156470), (310, 4125176), (341, 3750160), (440, 2906374), (496, 2578235), (620, 2062588), (682, 1875080), (880, 1453187), (1240, 1031294), (1364, 937540), (1705, 750032), (2480, 515647), (2728, 468770), (3410, 375016), (5456, 234385), (6820, 187508), (13640, 93754), (27280, 46877)]