278318000

素因数分解:

$2^4\times 5^3\times {\mathrm{31}}^1\times {\mathrm{67}}^2$

素因数の和:188

約数の個数: 120

約数和(自身を含む): 705204864

約数和(自身を除く): 426886864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 67, 80, 100, 124, 125, 134, 155, 200, 248, 250, 268, 310, 335, 400, 496, 500, 536, 620, 670, 775, 1000, 1072, 1240, 1340, 1550, 1675, 2000, 2077, 2480, 2680, 3100, 3350, 3875, 4154, 4489, 5360, 6200, 6700, 7750, 8308, 8375, 8978, 10385, 12400, 13400, 15500, 16616, 16750, 17956, 20770, 22445, 26800, 31000, 33232, 33500, 35912, 41540, 44890, 51925, 62000, 67000, 71824, 83080, 89780, 103850, 112225, 134000, 139159, 166160, 179560, 207700, 224450, 259625, 278318, 359120, 415400, 448900, 519250, 556636, 561125, 695795, 830800, 897800, 1038500, 1113272, 1122250, 1391590, 1795600, 2077000, 2226544, 2244500, 2783180, 3478975, 4154000, 4489000, 5566360, 6957950, 8978000, 11132720, 13915900, 17394875, 27831800, 34789750, 55663600, 69579500, 139159000, 278318000]

約数ペア:

[(1, 278318000), (2, 139159000), (4, 69579500), (5, 55663600), (8, 34789750), (10, 27831800), (16, 17394875), (20, 13915900), (25, 11132720), (31, 8978000), (40, 6957950), (50, 5566360), (62, 4489000), (67, 4154000), (80, 3478975), (100, 2783180), (124, 2244500), (125, 2226544), (134, 2077000), (155, 1795600), (200, 1391590), (248, 1122250), (250, 1113272), (268, 1038500), (310, 897800), (335, 830800), (400, 695795), (496, 561125), (500, 556636), (536, 519250), (620, 448900), (670, 415400), (775, 359120), (1000, 278318), (1072, 259625), (1240, 224450), (1340, 207700), (1550, 179560), (1675, 166160), (2000, 139159), (2077, 134000), (2480, 112225), (2680, 103850), (3100, 89780), (3350, 83080), (3875, 71824), (4154, 67000), (4489, 62000), (5360, 51925), (6200, 44890), (6700, 41540), (7750, 35912), (8308, 33500), (8375, 33232), (8978, 31000), (10385, 26800), (12400, 22445), (13400, 20770), (15500, 17956), (16616, 16750)]