31921920

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:207

約数の個数: 216

約数和(自身を含む): 117660816

約数和(自身を除く): 85738896

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 60, 64, 68, 72, 80, 85, 90, 96, 102, 120, 128, 136, 144, 153, 160, 163, 170, 180, 192, 204, 240, 255, 256, 272, 288, 306, 320, 326, 340, 360, 384, 408, 480, 489, 510, 544, 576, 612, 640, 652, 680, 720, 765, 768, 815, 816, 960, 978, 1020, 1088, 1152, 1224, 1280, 1304, 1360, 1440, 1467, 1530, 1630, 1632, 1920, 1956, 2040, 2176, 2304, 2445, 2448, 2608, 2720, 2771, 2880, 2934, 3060, 3260, 3264, 3840, 3912, 4080, 4352, 4890, 4896, 5216, 5440, 5542, 5760, 5868, 6120, 6520, 6528, 7335, 7824, 8160, 8313, 9780, 9792, 10432, 10880, 11084, 11520, 11736, 12240, 13040, 13056, 13855, 14670, 15648, 16320, 16626, 19560, 19584, 20864, 21760, 22168, 23472, 24480, 24939, 26080, 27710, 29340, 31296, 32640, 33252, 39120, 39168, 41565, 41728, 44336, 46944, 48960, 49878, 52160, 55420, 58680, 62592, 65280, 66504, 78240, 83130, 88672, 93888, 97920, 99756, 104320, 110840, 117360, 124695, 125184, 133008, 156480, 166260, 177344, 187776, 195840, 199512, 208640, 221680, 234720, 249390, 266016, 312960, 332520, 354688, 375552, 399024, 443360, 469440, 498780, 532032, 625920, 665040, 709376, 798048, 886720, 938880, 997560, 1064064, 1330080, 1596096, 1773440, 1877760, 1995120, 2128128, 2660160, 3192192, 3546880, 3990240, 5320320, 6384384, 7980480, 10640640, 15960960, 31921920]

約数ペア:

[(1, 31921920), (2, 15960960), (3, 10640640), (4, 7980480), (5, 6384384), (6, 5320320), (8, 3990240), (9, 3546880), (10, 3192192), (12, 2660160), (15, 2128128), (16, 1995120), (17, 1877760), (18, 1773440), (20, 1596096), (24, 1330080), (30, 1064064), (32, 997560), (34, 938880), (36, 886720), (40, 798048), (45, 709376), (48, 665040), (51, 625920), (60, 532032), (64, 498780), (68, 469440), (72, 443360), (80, 399024), (85, 375552), (90, 354688), (96, 332520), (102, 312960), (120, 266016), (128, 249390), (136, 234720), (144, 221680), (153, 208640), (160, 199512), (163, 195840), (170, 187776), (180, 177344), (192, 166260), (204, 156480), (240, 133008), (255, 125184), (256, 124695), (272, 117360), (288, 110840), (306, 104320), (320, 99756), (326, 97920), (340, 93888), (360, 88672), (384, 83130), (408, 78240), (480, 66504), (489, 65280), (510, 62592), (544, 58680), (576, 55420), (612, 52160), (640, 49878), (652, 48960), (680, 46944), (720, 44336), (765, 41728), (768, 41565), (815, 39168), (816, 39120), (960, 33252), (978, 32640), (1020, 31296), (1088, 29340), (1152, 27710), (1224, 26080), (1280, 24939), (1304, 24480), (1360, 23472), (1440, 22168), (1467, 21760), (1530, 20864), (1630, 19584), (1632, 19560), (1920, 16626), (1956, 16320), (2040, 15648), (2176, 14670), (2304, 13855), (2445, 13056), (2448, 13040), (2608, 12240), (2720, 11736), (2771, 11520), (2880, 11084), (2934, 10880), (3060, 10432), (3260, 9792), (3264, 9780), (3840, 8313), (3912, 8160), (4080, 7824), (4352, 7335), (4890, 6528), (4896, 6520), (5216, 6120), (5440, 5868), (5542, 5760)]