261072720

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{40289}}^1$

素因数の和:40314

約数の個数: 100

約数和(自身を含む): 906766740

約数和(自身を除く): 645694020

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 40289, 80578, 120867, 161156, 201445, 241734, 322312, 362601, 402890, 483468, 604335, 644624, 725202, 805780, 966936, 1087803, 1208670, 1450404, 1611560, 1813005, 1933872, 2175606, 2417340, 2900808, 3223120, 3263409, 3626010, 4351212, 4834680, 5439015, 5801616, 6526818, 7252020, 8702424, 9669360, 10878030, 13053636, 14504040, 16317045, 17404848, 21756060, 26107272, 29008080, 32634090, 43512120, 52214544, 65268180, 87024240, 130536360, 261072720]

約数ペア:

[(1, 261072720), (2, 130536360), (3, 87024240), (4, 65268180), (5, 52214544), (6, 43512120), (8, 32634090), (9, 29008080), (10, 26107272), (12, 21756060), (15, 17404848), (16, 16317045), (18, 14504040), (20, 13053636), (24, 10878030), (27, 9669360), (30, 8702424), (36, 7252020), (40, 6526818), (45, 5801616), (48, 5439015), (54, 4834680), (60, 4351212), (72, 3626010), (80, 3263409), (81, 3223120), (90, 2900808), (108, 2417340), (120, 2175606), (135, 1933872), (144, 1813005), (162, 1611560), (180, 1450404), (216, 1208670), (240, 1087803), (270, 966936), (324, 805780), (360, 725202), (405, 644624), (432, 604335), (540, 483468), (648, 402890), (720, 362601), (810, 322312), (1080, 241734), (1296, 201445), (1620, 161156), (2160, 120867), (3240, 80578), (6480, 40289)]