256760280

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{11321}}^1$

素因数の和:11351

約数の個数: 160

約数和(自身を含む): 986372640

約数和(自身を除く): 729612360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 252, 270, 280, 315, 324, 360, 378, 405, 420, 504, 540, 567, 630, 648, 756, 810, 840, 945, 1080, 1134, 1260, 1512, 1620, 1890, 2268, 2520, 2835, 3240, 3780, 4536, 5670, 7560, 11321, 11340, 22642, 22680, 33963, 45284, 56605, 67926, 79247, 90568, 101889, 113210, 135852, 158494, 169815, 203778, 226420, 237741, 271704, 305667, 316988, 339630, 396235, 407556, 452840, 475482, 509445, 611334, 633976, 679260, 713223, 792470, 815112, 917001, 950964, 1018890, 1188705, 1222668, 1358520, 1426446, 1528335, 1584940, 1834002, 1901928, 2037780, 2139669, 2377410, 2445336, 2852892, 3056670, 3169880, 3566115, 3668004, 4075560, 4279338, 4585005, 4754820, 5705784, 6113340, 6419007, 7132230, 7336008, 8558676, 9170010, 9509640, 10698345, 12226680, 12838014, 14264460, 17117352, 18340020, 21396690, 25676028, 28528920, 32095035, 36680040, 42793380, 51352056, 64190070, 85586760, 128380140, 256760280]

約数ペア:

[(1, 256760280), (2, 128380140), (3, 85586760), (4, 64190070), (5, 51352056), (6, 42793380), (7, 36680040), (8, 32095035), (9, 28528920), (10, 25676028), (12, 21396690), (14, 18340020), (15, 17117352), (18, 14264460), (20, 12838014), (21, 12226680), (24, 10698345), (27, 9509640), (28, 9170010), (30, 8558676), (35, 7336008), (36, 7132230), (40, 6419007), (42, 6113340), (45, 5705784), (54, 4754820), (56, 4585005), (60, 4279338), (63, 4075560), (70, 3668004), (72, 3566115), (81, 3169880), (84, 3056670), (90, 2852892), (105, 2445336), (108, 2377410), (120, 2139669), (126, 2037780), (135, 1901928), (140, 1834002), (162, 1584940), (168, 1528335), (180, 1426446), (189, 1358520), (210, 1222668), (216, 1188705), (252, 1018890), (270, 950964), (280, 917001), (315, 815112), (324, 792470), (360, 713223), (378, 679260), (405, 633976), (420, 611334), (504, 509445), (540, 475482), (567, 452840), (630, 407556), (648, 396235), (756, 339630), (810, 316988), (840, 305667), (945, 271704), (1080, 237741), (1134, 226420), (1260, 203778), (1512, 169815), (1620, 158494), (1890, 135852), (2268, 113210), (2520, 101889), (2835, 90568), (3240, 79247), (3780, 67926), (4536, 56605), (5670, 45284), (7560, 33963), (11321, 22680), (11340, 22642)]