280008120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10753}}^1$

素因数の和:10805

約数の個数: 128

約数和(自身を含む): 991088640

約数和(自身を除く): 711080520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1736, 1860, 2170, 2604, 3255, 3720, 4340, 5208, 6510, 8680, 10753, 13020, 21506, 26040, 32259, 43012, 53765, 64518, 75271, 86024, 107530, 129036, 150542, 161295, 215060, 225813, 258072, 301084, 322590, 333343, 376355, 430120, 451626, 602168, 645180, 666686, 752710, 903252, 1000029, 1129065, 1290360, 1333372, 1505420, 1666715, 1806504, 2000058, 2258130, 2333401, 2666744, 3010840, 3333430, 4000116, 4516260, 4666802, 5000145, 6666860, 7000203, 8000232, 9032520, 9333604, 10000290, 11667005, 13333720, 14000406, 18667208, 20000580, 23334010, 28000812, 35001015, 40001160, 46668020, 56001624, 70002030, 93336040, 140004060, 280008120]

約数ペア:

[(1, 280008120), (2, 140004060), (3, 93336040), (4, 70002030), (5, 56001624), (6, 46668020), (7, 40001160), (8, 35001015), (10, 28000812), (12, 23334010), (14, 20000580), (15, 18667208), (20, 14000406), (21, 13333720), (24, 11667005), (28, 10000290), (30, 9333604), (31, 9032520), (35, 8000232), (40, 7000203), (42, 6666860), (56, 5000145), (60, 4666802), (62, 4516260), (70, 4000116), (84, 3333430), (93, 3010840), (105, 2666744), (120, 2333401), (124, 2258130), (140, 2000058), (155, 1806504), (168, 1666715), (186, 1505420), (210, 1333372), (217, 1290360), (248, 1129065), (280, 1000029), (310, 903252), (372, 752710), (420, 666686), (434, 645180), (465, 602168), (620, 451626), (651, 430120), (744, 376355), (840, 333343), (868, 322590), (930, 301084), (1085, 258072), (1240, 225813), (1302, 215060), (1736, 161295), (1860, 150542), (2170, 129036), (2604, 107530), (3255, 86024), (3720, 75271), (4340, 64518), (5208, 53765), (6510, 43012), (8680, 32259), (10753, 26040), (13020, 21506)]