78217440

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{23279}}^1$

素因数の和:23304

約数の個数: 96

約数和(自身を含む): 281594880

約数和(自身を除く): 203377440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 23279, 46558, 69837, 93116, 116395, 139674, 162953, 186232, 232790, 279348, 325906, 349185, 372464, 465580, 488859, 558696, 651812, 698370, 744928, 814765, 931160, 977718, 1117392, 1303624, 1396740, 1629530, 1862320, 1955436, 2234784, 2444295, 2607248, 2793480, 3259060, 3724640, 3910872, 4888590, 5214496, 5586960, 6518120, 7821744, 9777180, 11173920, 13036240, 15643488, 19554360, 26072480, 39108720, 78217440]

約数ペア:

[(1, 78217440), (2, 39108720), (3, 26072480), (4, 19554360), (5, 15643488), (6, 13036240), (7, 11173920), (8, 9777180), (10, 7821744), (12, 6518120), (14, 5586960), (15, 5214496), (16, 4888590), (20, 3910872), (21, 3724640), (24, 3259060), (28, 2793480), (30, 2607248), (32, 2444295), (35, 2234784), (40, 1955436), (42, 1862320), (48, 1629530), (56, 1396740), (60, 1303624), (70, 1117392), (80, 977718), (84, 931160), (96, 814765), (105, 744928), (112, 698370), (120, 651812), (140, 558696), (160, 488859), (168, 465580), (210, 372464), (224, 349185), (240, 325906), (280, 279348), (336, 232790), (420, 186232), (480, 162953), (560, 139674), (672, 116395), (840, 93116), (1120, 69837), (1680, 46558), (3360, 23279)]