261105120

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{20147}}^1$

素因数の和:20174

約数の個数: 120

約数和(自身を含む): 921529224

約数和(自身を除く): 660424104

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1296, 1440, 1620, 2160, 2592, 3240, 4320, 6480, 12960, 20147, 40294, 60441, 80588, 100735, 120882, 161176, 181323, 201470, 241764, 302205, 322352, 362646, 402940, 483528, 543969, 604410, 644704, 725292, 805880, 906615, 967056, 1087938, 1208820, 1450584, 1611760, 1631907, 1813230, 1934112, 2175876, 2417640, 2719845, 2901168, 3223520, 3263814, 3626460, 4351752, 4835280, 5439690, 5802336, 6527628, 7252920, 8159535, 8703504, 9670560, 10879380, 13055256, 14505840, 16319070, 17407008, 21758760, 26110512, 29011680, 32638140, 43517520, 52221024, 65276280, 87035040, 130552560, 261105120]

約数ペア:

[(1, 261105120), (2, 130552560), (3, 87035040), (4, 65276280), (5, 52221024), (6, 43517520), (8, 32638140), (9, 29011680), (10, 26110512), (12, 21758760), (15, 17407008), (16, 16319070), (18, 14505840), (20, 13055256), (24, 10879380), (27, 9670560), (30, 8703504), (32, 8159535), (36, 7252920), (40, 6527628), (45, 5802336), (48, 5439690), (54, 4835280), (60, 4351752), (72, 3626460), (80, 3263814), (81, 3223520), (90, 2901168), (96, 2719845), (108, 2417640), (120, 2175876), (135, 1934112), (144, 1813230), (160, 1631907), (162, 1611760), (180, 1450584), (216, 1208820), (240, 1087938), (270, 967056), (288, 906615), (324, 805880), (360, 725292), (405, 644704), (432, 604410), (480, 543969), (540, 483528), (648, 402940), (720, 362646), (810, 322352), (864, 302205), (1080, 241764), (1296, 201470), (1440, 181323), (1620, 161176), (2160, 120882), (2592, 100735), (3240, 80588), (4320, 60441), (6480, 40294), (12960, 20147)]