28165600

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:165

約数の個数: 144

約数和(自身を含む): 77338800

約数和(自身を除く): 49173200

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 25, 32, 34, 38, 40, 50, 68, 76, 80, 85, 95, 100, 109, 136, 152, 160, 170, 190, 200, 218, 272, 304, 323, 340, 380, 400, 425, 436, 475, 544, 545, 608, 646, 680, 760, 800, 850, 872, 950, 1090, 1292, 1360, 1520, 1615, 1700, 1744, 1853, 1900, 2071, 2180, 2584, 2720, 2725, 3040, 3230, 3400, 3488, 3706, 3800, 4142, 4360, 5168, 5450, 6460, 6800, 7412, 7600, 8075, 8284, 8720, 9265, 10336, 10355, 10900, 12920, 13600, 14824, 15200, 16150, 16568, 17440, 18530, 20710, 21800, 25840, 29648, 32300, 33136, 35207, 37060, 41420, 43600, 46325, 51680, 51775, 59296, 64600, 66272, 70414, 74120, 82840, 87200, 92650, 103550, 129200, 140828, 148240, 165680, 176035, 185300, 207100, 258400, 281656, 296480, 331360, 352070, 370600, 414200, 563312, 704140, 741200, 828400, 880175, 1126624, 1408280, 1482400, 1656800, 1760350, 2816560, 3520700, 5633120, 7041400, 14082800, 28165600]

約数ペア:

[(1, 28165600), (2, 14082800), (4, 7041400), (5, 5633120), (8, 3520700), (10, 2816560), (16, 1760350), (17, 1656800), (19, 1482400), (20, 1408280), (25, 1126624), (32, 880175), (34, 828400), (38, 741200), (40, 704140), (50, 563312), (68, 414200), (76, 370600), (80, 352070), (85, 331360), (95, 296480), (100, 281656), (109, 258400), (136, 207100), (152, 185300), (160, 176035), (170, 165680), (190, 148240), (200, 140828), (218, 129200), (272, 103550), (304, 92650), (323, 87200), (340, 82840), (380, 74120), (400, 70414), (425, 66272), (436, 64600), (475, 59296), (544, 51775), (545, 51680), (608, 46325), (646, 43600), (680, 41420), (760, 37060), (800, 35207), (850, 33136), (872, 32300), (950, 29648), (1090, 25840), (1292, 21800), (1360, 20710), (1520, 18530), (1615, 17440), (1700, 16568), (1744, 16150), (1853, 15200), (1900, 14824), (2071, 13600), (2180, 12920), (2584, 10900), (2720, 10355), (2725, 10336), (3040, 9265), (3230, 8720), (3400, 8284), (3488, 8075), (3706, 7600), (3800, 7412), (4142, 6800), (4360, 6460), (5168, 5450)]