256887680

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3373}}^1$

素因数の和:3416

約数の個数: 128

約数和(自身を含む): 743359680

約数和(自身を除く): 486472000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 64, 68, 70, 80, 85, 112, 119, 128, 136, 140, 160, 170, 224, 238, 272, 280, 320, 340, 448, 476, 544, 560, 595, 640, 680, 896, 952, 1088, 1120, 1190, 1360, 1904, 2176, 2240, 2380, 2720, 3373, 3808, 4480, 4760, 5440, 6746, 7616, 9520, 10880, 13492, 15232, 16865, 19040, 23611, 26984, 33730, 38080, 47222, 53968, 57341, 67460, 76160, 94444, 107936, 114682, 118055, 134920, 188888, 215872, 229364, 236110, 269840, 286705, 377776, 401387, 431744, 458728, 472220, 539680, 573410, 755552, 802774, 917456, 944440, 1079360, 1146820, 1511104, 1605548, 1834912, 1888880, 2006935, 2158720, 2293640, 3022208, 3211096, 3669824, 3777760, 4013870, 4587280, 6422192, 7339648, 7555520, 8027740, 9174560, 12844384, 15111040, 16055480, 18349120, 25688768, 32110960, 36698240, 51377536, 64221920, 128443840, 256887680]

約数ペア:

[(1, 256887680), (2, 128443840), (4, 64221920), (5, 51377536), (7, 36698240), (8, 32110960), (10, 25688768), (14, 18349120), (16, 16055480), (17, 15111040), (20, 12844384), (28, 9174560), (32, 8027740), (34, 7555520), (35, 7339648), (40, 6422192), (56, 4587280), (64, 4013870), (68, 3777760), (70, 3669824), (80, 3211096), (85, 3022208), (112, 2293640), (119, 2158720), (128, 2006935), (136, 1888880), (140, 1834912), (160, 1605548), (170, 1511104), (224, 1146820), (238, 1079360), (272, 944440), (280, 917456), (320, 802774), (340, 755552), (448, 573410), (476, 539680), (544, 472220), (560, 458728), (595, 431744), (640, 401387), (680, 377776), (896, 286705), (952, 269840), (1088, 236110), (1120, 229364), (1190, 215872), (1360, 188888), (1904, 134920), (2176, 118055), (2240, 114682), (2380, 107936), (2720, 94444), (3373, 76160), (3808, 67460), (4480, 57341), (4760, 53968), (5440, 47222), (6746, 38080), (7616, 33730), (9520, 26984), (10880, 23611), (13492, 19040), (15232, 16865)]