31911120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:130

約数の個数: 240

約数和(自身を含む): 116992512

約数和(自身を除く): 85081392

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 41, 45, 46, 47, 48, 60, 69, 72, 80, 82, 90, 92, 94, 115, 120, 123, 138, 141, 144, 164, 180, 184, 188, 205, 207, 230, 235, 240, 246, 276, 282, 328, 345, 360, 368, 369, 376, 410, 414, 423, 460, 470, 492, 552, 564, 615, 656, 690, 705, 720, 738, 752, 820, 828, 846, 920, 940, 943, 984, 1035, 1081, 1104, 1128, 1230, 1380, 1410, 1476, 1640, 1656, 1692, 1840, 1845, 1880, 1886, 1927, 1968, 2070, 2115, 2162, 2256, 2460, 2760, 2820, 2829, 2952, 3243, 3280, 3312, 3384, 3690, 3760, 3772, 3854, 4140, 4230, 4324, 4715, 4920, 5405, 5520, 5640, 5658, 5781, 5904, 6486, 6768, 7380, 7544, 7708, 8280, 8460, 8487, 8648, 9430, 9635, 9729, 9840, 10810, 11280, 11316, 11562, 12972, 14145, 14760, 15088, 15416, 16215, 16560, 16920, 16974, 17296, 17343, 18860, 19270, 19458, 21620, 22632, 23124, 25944, 28290, 28905, 29520, 30832, 32430, 33840, 33948, 34686, 37720, 38540, 38916, 42435, 43240, 44321, 45264, 46248, 48645, 51888, 56580, 57810, 64860, 67896, 69372, 75440, 77080, 77832, 84870, 86480, 86715, 88642, 92496, 97290, 113160, 115620, 129720, 132963, 135792, 138744, 154160, 155664, 169740, 173430, 177284, 194580, 221605, 226320, 231240, 259440, 265926, 277488, 339480, 346860, 354568, 389160, 398889, 443210, 462480, 531852, 664815, 678960, 693720, 709136, 778320, 797778, 886420, 1063704, 1329630, 1387440, 1595556, 1772840, 1994445, 2127408, 2659260, 3191112, 3545680, 3988890, 5318520, 6382224, 7977780, 10637040, 15955560, 31911120]

約数ペア:

[(1, 31911120), (2, 15955560), (3, 10637040), (4, 7977780), (5, 6382224), (6, 5318520), (8, 3988890), (9, 3545680), (10, 3191112), (12, 2659260), (15, 2127408), (16, 1994445), (18, 1772840), (20, 1595556), (23, 1387440), (24, 1329630), (30, 1063704), (36, 886420), (40, 797778), (41, 778320), (45, 709136), (46, 693720), (47, 678960), (48, 664815), (60, 531852), (69, 462480), (72, 443210), (80, 398889), (82, 389160), (90, 354568), (92, 346860), (94, 339480), (115, 277488), (120, 265926), (123, 259440), (138, 231240), (141, 226320), (144, 221605), (164, 194580), (180, 177284), (184, 173430), (188, 169740), (205, 155664), (207, 154160), (230, 138744), (235, 135792), (240, 132963), (246, 129720), (276, 115620), (282, 113160), (328, 97290), (345, 92496), (360, 88642), (368, 86715), (369, 86480), (376, 84870), (410, 77832), (414, 77080), (423, 75440), (460, 69372), (470, 67896), (492, 64860), (552, 57810), (564, 56580), (615, 51888), (656, 48645), (690, 46248), (705, 45264), (720, 44321), (738, 43240), (752, 42435), (820, 38916), (828, 38540), (846, 37720), (920, 34686), (940, 33948), (943, 33840), (984, 32430), (1035, 30832), (1081, 29520), (1104, 28905), (1128, 28290), (1230, 25944), (1380, 23124), (1410, 22632), (1476, 21620), (1640, 19458), (1656, 19270), (1692, 18860), (1840, 17343), (1845, 17296), (1880, 16974), (1886, 16920), (1927, 16560), (1968, 16215), (2070, 15416), (2115, 15088), (2162, 14760), (2256, 14145), (2460, 12972), (2760, 11562), (2820, 11316), (2829, 11280), (2952, 10810), (3243, 9840), (3280, 9729), (3312, 9635), (3384, 9430), (3690, 8648), (3760, 8487), (3772, 8460), (3854, 8280), (4140, 7708), (4230, 7544), (4324, 7380), (4715, 6768), (4920, 6486), (5405, 5904), (5520, 5781), (5640, 5658)]