208521720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{4787}}^1$

素因数の和:4826

約数の個数: 144

約数和(自身を含む): 745060680

約数和(自身を除く): 536538960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 121, 132, 165, 180, 198, 220, 242, 264, 330, 360, 363, 396, 440, 484, 495, 605, 660, 726, 792, 968, 990, 1089, 1210, 1320, 1452, 1815, 1980, 2178, 2420, 2904, 3630, 3960, 4356, 4787, 4840, 5445, 7260, 8712, 9574, 10890, 14361, 14520, 19148, 21780, 23935, 28722, 38296, 43083, 43560, 47870, 52657, 57444, 71805, 86166, 95740, 105314, 114888, 143610, 157971, 172332, 191480, 210628, 215415, 263285, 287220, 315942, 344664, 421256, 430830, 473913, 526570, 574440, 579227, 631884, 789855, 861660, 947826, 1053140, 1158454, 1263768, 1579710, 1723320, 1737681, 1895652, 2106280, 2316908, 2369565, 2896135, 3159420, 3475362, 3791304, 4633816, 4739130, 5213043, 5792270, 6318840, 6950724, 8688405, 9478260, 10426086, 11584540, 13901448, 17376810, 18956520, 20852172, 23169080, 26065215, 34753620, 41704344, 52130430, 69507240, 104260860, 208521720]

約数ペア:

[(1, 208521720), (2, 104260860), (3, 69507240), (4, 52130430), (5, 41704344), (6, 34753620), (8, 26065215), (9, 23169080), (10, 20852172), (11, 18956520), (12, 17376810), (15, 13901448), (18, 11584540), (20, 10426086), (22, 9478260), (24, 8688405), (30, 6950724), (33, 6318840), (36, 5792270), (40, 5213043), (44, 4739130), (45, 4633816), (55, 3791304), (60, 3475362), (66, 3159420), (72, 2896135), (88, 2369565), (90, 2316908), (99, 2106280), (110, 1895652), (120, 1737681), (121, 1723320), (132, 1579710), (165, 1263768), (180, 1158454), (198, 1053140), (220, 947826), (242, 861660), (264, 789855), (330, 631884), (360, 579227), (363, 574440), (396, 526570), (440, 473913), (484, 430830), (495, 421256), (605, 344664), (660, 315942), (726, 287220), (792, 263285), (968, 215415), (990, 210628), (1089, 191480), (1210, 172332), (1320, 157971), (1452, 143610), (1815, 114888), (1980, 105314), (2178, 95740), (2420, 86166), (2904, 71805), (3630, 57444), (3960, 52657), (4356, 47870), (4787, 43560), (4840, 43083), (5445, 38296), (7260, 28722), (8712, 23935), (9574, 21780), (10890, 19148), (14361, 14520)]