80978520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{647}}^1$

素因数の和:817

約数の個数: 128

約数和(自身を含む): 279936000

約数和(自身を除く): 198957480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 149, 168, 210, 280, 298, 420, 447, 596, 647, 745, 840, 894, 1043, 1192, 1294, 1490, 1788, 1941, 2086, 2235, 2588, 2980, 3129, 3235, 3576, 3882, 4172, 4470, 4529, 5176, 5215, 5960, 6258, 6470, 7764, 8344, 8940, 9058, 9705, 10430, 12516, 12940, 13587, 15528, 15645, 17880, 18116, 19410, 20860, 22645, 25032, 25880, 27174, 31290, 36232, 38820, 41720, 45290, 54348, 62580, 67935, 77640, 90580, 96403, 108696, 125160, 135870, 181160, 192806, 271740, 289209, 385612, 482015, 543480, 578418, 674821, 771224, 964030, 1156836, 1349642, 1446045, 1928060, 2024463, 2313672, 2699284, 2892090, 3374105, 3856120, 4048926, 5398568, 5784180, 6748210, 8097852, 10122315, 11568360, 13496420, 16195704, 20244630, 26992840, 40489260, 80978520]

約数ペア:

[(1, 80978520), (2, 40489260), (3, 26992840), (4, 20244630), (5, 16195704), (6, 13496420), (7, 11568360), (8, 10122315), (10, 8097852), (12, 6748210), (14, 5784180), (15, 5398568), (20, 4048926), (21, 3856120), (24, 3374105), (28, 2892090), (30, 2699284), (35, 2313672), (40, 2024463), (42, 1928060), (56, 1446045), (60, 1349642), (70, 1156836), (84, 964030), (105, 771224), (120, 674821), (140, 578418), (149, 543480), (168, 482015), (210, 385612), (280, 289209), (298, 271740), (420, 192806), (447, 181160), (596, 135870), (647, 125160), (745, 108696), (840, 96403), (894, 90580), (1043, 77640), (1192, 67935), (1294, 62580), (1490, 54348), (1788, 45290), (1941, 41720), (2086, 38820), (2235, 36232), (2588, 31290), (2980, 27174), (3129, 25880), (3235, 25032), (3576, 22645), (3882, 20860), (4172, 19410), (4470, 18116), (4529, 17880), (5176, 15645), (5215, 15528), (5960, 13587), (6258, 12940), (6470, 12516), (7764, 10430), (8344, 9705), (8940, 9058)]