81701520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:118

約数の個数: 240

約数和(自身を含む): 285731712

約数和(自身を除く): 204030192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 23, 24, 30, 38, 40, 41, 46, 48, 57, 60, 69, 76, 80, 82, 92, 95, 114, 115, 120, 123, 138, 152, 164, 184, 190, 205, 228, 230, 240, 246, 276, 285, 304, 328, 345, 361, 368, 380, 410, 437, 456, 460, 492, 552, 570, 615, 656, 690, 722, 760, 779, 820, 874, 912, 920, 943, 984, 1083, 1104, 1140, 1230, 1311, 1380, 1444, 1520, 1558, 1640, 1748, 1805, 1840, 1886, 1968, 2166, 2185, 2280, 2337, 2460, 2622, 2760, 2829, 2888, 3116, 3280, 3496, 3610, 3772, 3895, 4332, 4370, 4560, 4674, 4715, 4920, 5244, 5415, 5520, 5658, 5776, 6232, 6555, 6992, 7220, 7544, 7790, 8303, 8664, 8740, 9348, 9430, 9840, 10488, 10830, 11316, 11685, 12464, 13110, 14145, 14440, 14801, 15088, 15580, 16606, 17328, 17480, 17917, 18696, 18860, 20976, 21660, 22632, 23370, 24909, 26220, 28290, 28880, 29602, 31160, 33212, 34960, 35834, 37392, 37720, 41515, 43320, 44403, 45264, 46740, 49818, 52440, 53751, 56580, 59204, 62320, 66424, 71668, 74005, 75440, 83030, 86640, 88806, 89585, 93480, 99636, 104880, 107502, 113160, 118408, 124545, 132848, 143336, 148010, 166060, 177612, 179170, 186960, 199272, 215004, 222015, 226320, 236816, 249090, 268755, 286672, 296020, 332120, 340423, 355224, 358340, 398544, 430008, 444030, 498180, 537510, 592040, 664240, 680846, 710448, 716680, 860016, 888060, 996360, 1021269, 1075020, 1184080, 1361692, 1433360, 1702115, 1776120, 1992720, 2042538, 2150040, 2723384, 3404230, 3552240, 4085076, 4300080, 5106345, 5446768, 6808460, 8170152, 10212690, 13616920, 16340304, 20425380, 27233840, 40850760, 81701520]

約数ペア:

[(1, 81701520), (2, 40850760), (3, 27233840), (4, 20425380), (5, 16340304), (6, 13616920), (8, 10212690), (10, 8170152), (12, 6808460), (15, 5446768), (16, 5106345), (19, 4300080), (20, 4085076), (23, 3552240), (24, 3404230), (30, 2723384), (38, 2150040), (40, 2042538), (41, 1992720), (46, 1776120), (48, 1702115), (57, 1433360), (60, 1361692), (69, 1184080), (76, 1075020), (80, 1021269), (82, 996360), (92, 888060), (95, 860016), (114, 716680), (115, 710448), (120, 680846), (123, 664240), (138, 592040), (152, 537510), (164, 498180), (184, 444030), (190, 430008), (205, 398544), (228, 358340), (230, 355224), (240, 340423), (246, 332120), (276, 296020), (285, 286672), (304, 268755), (328, 249090), (345, 236816), (361, 226320), (368, 222015), (380, 215004), (410, 199272), (437, 186960), (456, 179170), (460, 177612), (492, 166060), (552, 148010), (570, 143336), (615, 132848), (656, 124545), (690, 118408), (722, 113160), (760, 107502), (779, 104880), (820, 99636), (874, 93480), (912, 89585), (920, 88806), (943, 86640), (984, 83030), (1083, 75440), (1104, 74005), (1140, 71668), (1230, 66424), (1311, 62320), (1380, 59204), (1444, 56580), (1520, 53751), (1558, 52440), (1640, 49818), (1748, 46740), (1805, 45264), (1840, 44403), (1886, 43320), (1968, 41515), (2166, 37720), (2185, 37392), (2280, 35834), (2337, 34960), (2460, 33212), (2622, 31160), (2760, 29602), (2829, 28880), (2888, 28290), (3116, 26220), (3280, 24909), (3496, 23370), (3610, 22632), (3772, 21660), (3895, 20976), (4332, 18860), (4370, 18696), (4560, 17917), (4674, 17480), (4715, 17328), (4920, 16606), (5244, 15580), (5415, 15088), (5520, 14801), (5658, 14440), (5776, 14145), (6232, 13110), (6555, 12464), (6992, 11685), (7220, 11316), (7544, 10830), (7790, 10488), (8303, 9840), (8664, 9430), (8740, 9348)]