291143440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{6581}}^1$

素因数の和:6680

約数の個数: 80

約数和(自身を含む): 783521280

約数和(自身を除く): 492377840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 79, 80, 112, 140, 158, 280, 316, 395, 553, 560, 632, 790, 1106, 1264, 1580, 2212, 2765, 3160, 4424, 5530, 6320, 6581, 8848, 11060, 13162, 22120, 26324, 32905, 44240, 46067, 52648, 65810, 92134, 105296, 131620, 184268, 230335, 263240, 368536, 460670, 519899, 526480, 737072, 921340, 1039798, 1842680, 2079596, 2599495, 3639293, 3685360, 4159192, 5198990, 7278586, 8318384, 10397980, 14557172, 18196465, 20795960, 29114344, 36392930, 41591920, 58228688, 72785860, 145571720, 291143440]

約数ペア:

[(1, 291143440), (2, 145571720), (4, 72785860), (5, 58228688), (7, 41591920), (8, 36392930), (10, 29114344), (14, 20795960), (16, 18196465), (20, 14557172), (28, 10397980), (35, 8318384), (40, 7278586), (56, 5198990), (70, 4159192), (79, 3685360), (80, 3639293), (112, 2599495), (140, 2079596), (158, 1842680), (280, 1039798), (316, 921340), (395, 737072), (553, 526480), (560, 519899), (632, 460670), (790, 368536), (1106, 263240), (1264, 230335), (1580, 184268), (2212, 131620), (2765, 105296), (3160, 92134), (4424, 65810), (5530, 52648), (6320, 46067), (6581, 44240), (8848, 32905), (11060, 26324), (13162, 22120)]