20854320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2803}}^1$

素因数の和:2850

約数の個数: 80

約数和(自身を含む): 66757632

約数和(自身を除く): 45903312

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 2803, 3720, 5606, 7440, 8409, 11212, 14015, 16818, 22424, 28030, 33636, 42045, 44848, 56060, 67272, 84090, 86893, 112120, 134544, 168180, 173786, 224240, 260679, 336360, 347572, 434465, 521358, 672720, 695144, 868930, 1042716, 1303395, 1390288, 1737860, 2085432, 2606790, 3475720, 4170864, 5213580, 6951440, 10427160, 20854320]

約数ペア:

[(1, 20854320), (2, 10427160), (3, 6951440), (4, 5213580), (5, 4170864), (6, 3475720), (8, 2606790), (10, 2085432), (12, 1737860), (15, 1390288), (16, 1303395), (20, 1042716), (24, 868930), (30, 695144), (31, 672720), (40, 521358), (48, 434465), (60, 347572), (62, 336360), (80, 260679), (93, 224240), (120, 173786), (124, 168180), (155, 134544), (186, 112120), (240, 86893), (248, 84090), (310, 67272), (372, 56060), (465, 44848), (496, 42045), (620, 33636), (744, 28030), (930, 22424), (1240, 16818), (1488, 14015), (1860, 11212), (2480, 8409), (2803, 7440), (3720, 5606)]