279359360

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{491}}^1$

素因数の和:644

約数の個数: 128

約数和(自身を含む): 770826240

約数和(自身を除く): 491466880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 127, 128, 140, 160, 224, 254, 280, 320, 448, 491, 508, 560, 635, 640, 889, 896, 982, 1016, 1120, 1270, 1778, 1964, 2032, 2240, 2455, 2540, 3437, 3556, 3928, 4064, 4445, 4480, 4910, 5080, 6874, 7112, 7856, 8128, 8890, 9820, 10160, 13748, 14224, 15712, 16256, 17185, 17780, 19640, 20320, 27496, 28448, 31424, 34370, 35560, 39280, 40640, 54992, 56896, 62357, 62848, 68740, 71120, 78560, 81280, 109984, 113792, 124714, 137480, 142240, 157120, 219968, 249428, 274960, 284480, 311785, 314240, 436499, 439936, 498856, 549920, 568960, 623570, 872998, 997712, 1099840, 1247140, 1745996, 1995424, 2182495, 2199680, 2494280, 3491992, 3990848, 4364990, 4988560, 6983984, 7981696, 8729980, 9977120, 13967968, 17459960, 19954240, 27935936, 34919920, 39908480, 55871872, 69839840, 139679680, 279359360]

約数ペア:

[(1, 279359360), (2, 139679680), (4, 69839840), (5, 55871872), (7, 39908480), (8, 34919920), (10, 27935936), (14, 19954240), (16, 17459960), (20, 13967968), (28, 9977120), (32, 8729980), (35, 7981696), (40, 6983984), (56, 4988560), (64, 4364990), (70, 3990848), (80, 3491992), (112, 2494280), (127, 2199680), (128, 2182495), (140, 1995424), (160, 1745996), (224, 1247140), (254, 1099840), (280, 997712), (320, 872998), (448, 623570), (491, 568960), (508, 549920), (560, 498856), (635, 439936), (640, 436499), (889, 314240), (896, 311785), (982, 284480), (1016, 274960), (1120, 249428), (1270, 219968), (1778, 157120), (1964, 142240), (2032, 137480), (2240, 124714), (2455, 113792), (2540, 109984), (3437, 81280), (3556, 78560), (3928, 71120), (4064, 68740), (4445, 62848), (4480, 62357), (4910, 56896), (5080, 54992), (6874, 40640), (7112, 39280), (7856, 35560), (8128, 34370), (8890, 31424), (9820, 28448), (10160, 27496), (13748, 20320), (14224, 19640), (15712, 17780), (16256, 17185)]