20175480

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:515

約数の個数: 160

約数和(自身を含む): 73180800

約数和(自身を除く): 53005320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 81, 90, 104, 108, 117, 120, 130, 135, 156, 162, 180, 195, 216, 234, 260, 270, 312, 324, 351, 360, 390, 405, 468, 479, 520, 540, 585, 648, 702, 780, 810, 936, 958, 1053, 1080, 1170, 1404, 1437, 1560, 1620, 1755, 1916, 2106, 2340, 2395, 2808, 2874, 3240, 3510, 3832, 4212, 4311, 4680, 4790, 5265, 5748, 6227, 7020, 7185, 8424, 8622, 9580, 10530, 11496, 12454, 12933, 14040, 14370, 17244, 18681, 19160, 21060, 21555, 24908, 25866, 28740, 31135, 34488, 37362, 38799, 42120, 43110, 49816, 51732, 56043, 57480, 62270, 64665, 74724, 77598, 86220, 93405, 103464, 112086, 124540, 129330, 149448, 155196, 168129, 172440, 186810, 193995, 224172, 249080, 258660, 280215, 310392, 336258, 373620, 387990, 448344, 504387, 517320, 560430, 672516, 747240, 775980, 840645, 1008774, 1120860, 1345032, 1551960, 1681290, 2017548, 2241720, 2521935, 3362580, 4035096, 5043870, 6725160, 10087740, 20175480]

約数ペア:

[(1, 20175480), (2, 10087740), (3, 6725160), (4, 5043870), (5, 4035096), (6, 3362580), (8, 2521935), (9, 2241720), (10, 2017548), (12, 1681290), (13, 1551960), (15, 1345032), (18, 1120860), (20, 1008774), (24, 840645), (26, 775980), (27, 747240), (30, 672516), (36, 560430), (39, 517320), (40, 504387), (45, 448344), (52, 387990), (54, 373620), (60, 336258), (65, 310392), (72, 280215), (78, 258660), (81, 249080), (90, 224172), (104, 193995), (108, 186810), (117, 172440), (120, 168129), (130, 155196), (135, 149448), (156, 129330), (162, 124540), (180, 112086), (195, 103464), (216, 93405), (234, 86220), (260, 77598), (270, 74724), (312, 64665), (324, 62270), (351, 57480), (360, 56043), (390, 51732), (405, 49816), (468, 43110), (479, 42120), (520, 38799), (540, 37362), (585, 34488), (648, 31135), (702, 28740), (780, 25866), (810, 24908), (936, 21555), (958, 21060), (1053, 19160), (1080, 18681), (1170, 17244), (1404, 14370), (1437, 14040), (1560, 12933), (1620, 12454), (1755, 11496), (1916, 10530), (2106, 9580), (2340, 8622), (2395, 8424), (2808, 7185), (2874, 7020), (3240, 6227), (3510, 5748), (3832, 5265), (4212, 4790), (4311, 4680)]