1408280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 3564000

約数和(自身を除く): 2155720

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 109, 136, 152, 170, 190, 218, 323, 340, 380, 436, 545, 646, 680, 760, 872, 1090, 1292, 1615, 1853, 2071, 2180, 2584, 3230, 3706, 4142, 4360, 6460, 7412, 8284, 9265, 10355, 12920, 14824, 16568, 18530, 20710, 35207, 37060, 41420, 70414, 74120, 82840, 140828, 176035, 281656, 352070, 704140, 1408280]

約数ペア:

[(1, 1408280), (2, 704140), (4, 352070), (5, 281656), (8, 176035), (10, 140828), (17, 82840), (19, 74120), (20, 70414), (34, 41420), (38, 37060), (40, 35207), (68, 20710), (76, 18530), (85, 16568), (95, 14824), (109, 12920), (136, 10355), (152, 9265), (170, 8284), (190, 7412), (218, 6460), (323, 4360), (340, 4142), (380, 3706), (436, 3230), (545, 2584), (646, 2180), (680, 2071), (760, 1853), (872, 1615), (1090, 1292)]