1556554880

素因数分解:

$2^7\times 5^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:602

約数の個数: 128

約数和(自身を含む): 3835220400

約数和(自身を除く): 2278665520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 109, 128, 160, 212, 218, 265, 320, 421, 424, 436, 530, 545, 640, 842, 848, 872, 1060, 1090, 1684, 1696, 1744, 2105, 2120, 2180, 3368, 3392, 3488, 4210, 4240, 4360, 5777, 6736, 6784, 6976, 8420, 8480, 8720, 11554, 13472, 13952, 16840, 16960, 17440, 22313, 23108, 26944, 28885, 33680, 33920, 34880, 44626, 45889, 46216, 53888, 57770, 67360, 69760, 89252, 91778, 92432, 111565, 115540, 134720, 178504, 183556, 184864, 223130, 229445, 231080, 269440, 357008, 367112, 369728, 446260, 458890, 462160, 714016, 734224, 739456, 892520, 917780, 924320, 1428032, 1468448, 1785040, 1835560, 1848640, 2432117, 2856064, 2936896, 3570080, 3671120, 3697280, 4864234, 5873792, 7140160, 7342240, 9728468, 12160585, 14280320, 14684480, 19456936, 24321170, 29368960, 38913872, 48642340, 77827744, 97284680, 155655488, 194569360, 311310976, 389138720, 778277440, 1556554880]

約数ペア:

[(1, 1556554880), (2, 778277440), (4, 389138720), (5, 311310976), (8, 194569360), (10, 155655488), (16, 97284680), (20, 77827744), (32, 48642340), (40, 38913872), (53, 29368960), (64, 24321170), (80, 19456936), (106, 14684480), (109, 14280320), (128, 12160585), (160, 9728468), (212, 7342240), (218, 7140160), (265, 5873792), (320, 4864234), (421, 3697280), (424, 3671120), (436, 3570080), (530, 2936896), (545, 2856064), (640, 2432117), (842, 1848640), (848, 1835560), (872, 1785040), (1060, 1468448), (1090, 1428032), (1684, 924320), (1696, 917780), (1744, 892520), (2105, 739456), (2120, 734224), (2180, 714016), (3368, 462160), (3392, 458890), (3488, 446260), (4210, 369728), (4240, 367112), (4360, 357008), (5777, 269440), (6736, 231080), (6784, 229445), (6976, 223130), (8420, 184864), (8480, 183556), (8720, 178504), (11554, 134720), (13472, 115540), (13952, 111565), (16840, 92432), (16960, 91778), (17440, 89252), (22313, 69760), (23108, 67360), (26944, 57770), (28885, 53888), (33680, 46216), (33920, 45889), (34880, 44626)]