21322440

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{6581}}^1$

素因数の和:6604

約数の個数: 80

約数和(自身を含む): 71677980

約数和(自身を除く): 50355540

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 6581, 13162, 19743, 26324, 32905, 39486, 52648, 59229, 65810, 78972, 98715, 118458, 131620, 157944, 177687, 197430, 236916, 263240, 296145, 355374, 394860, 473832, 533061, 592290, 710748, 789720, 888435, 1066122, 1184580, 1421496, 1776870, 2132244, 2369160, 2665305, 3553740, 4264488, 5330610, 7107480, 10661220, 21322440]

約数ペア:

[(1, 21322440), (2, 10661220), (3, 7107480), (4, 5330610), (5, 4264488), (6, 3553740), (8, 2665305), (9, 2369160), (10, 2132244), (12, 1776870), (15, 1421496), (18, 1184580), (20, 1066122), (24, 888435), (27, 789720), (30, 710748), (36, 592290), (40, 533061), (45, 473832), (54, 394860), (60, 355374), (72, 296145), (81, 263240), (90, 236916), (108, 197430), (120, 177687), (135, 157944), (162, 131620), (180, 118458), (216, 98715), (270, 78972), (324, 65810), (360, 59229), (405, 52648), (540, 39486), (648, 32905), (810, 26324), (1080, 19743), (1620, 13162), (3240, 6581)]