256788840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{27791}}^1$

素因数の和:27823

約数の個数: 128

約数和(自身を含む): 960491520

約数和(自身を除く): 703702680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2310, 3080, 4620, 9240, 27791, 55582, 83373, 111164, 138955, 166746, 194537, 222328, 277910, 305701, 333492, 389074, 416865, 555820, 583611, 611402, 666984, 778148, 833730, 917103, 972685, 1111640, 1167222, 1222804, 1528505, 1556296, 1667460, 1834206, 1945370, 2139907, 2334444, 2445608, 2918055, 3057010, 3334920, 3668412, 3890740, 4279814, 4585515, 4668888, 5836110, 6114020, 6419721, 7336824, 7781480, 8559628, 9171030, 10699535, 11672220, 12228040, 12839442, 17119256, 18342060, 21399070, 23344440, 25678884, 32098605, 36684120, 42798140, 51357768, 64197210, 85596280, 128394420, 256788840]

約数ペア:

[(1, 256788840), (2, 128394420), (3, 85596280), (4, 64197210), (5, 51357768), (6, 42798140), (7, 36684120), (8, 32098605), (10, 25678884), (11, 23344440), (12, 21399070), (14, 18342060), (15, 17119256), (20, 12839442), (21, 12228040), (22, 11672220), (24, 10699535), (28, 9171030), (30, 8559628), (33, 7781480), (35, 7336824), (40, 6419721), (42, 6114020), (44, 5836110), (55, 4668888), (56, 4585515), (60, 4279814), (66, 3890740), (70, 3668412), (77, 3334920), (84, 3057010), (88, 2918055), (105, 2445608), (110, 2334444), (120, 2139907), (132, 1945370), (140, 1834206), (154, 1667460), (165, 1556296), (168, 1528505), (210, 1222804), (220, 1167222), (231, 1111640), (264, 972685), (280, 917103), (308, 833730), (330, 778148), (385, 666984), (420, 611402), (440, 583611), (462, 555820), (616, 416865), (660, 389074), (770, 333492), (840, 305701), (924, 277910), (1155, 222328), (1320, 194537), (1540, 166746), (1848, 138955), (2310, 111164), (3080, 83373), (4620, 55582), (9240, 27791)]