31481280

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{643}}^1$

素因数の和:683

約数の個数: 168

約数和(自身を含む): 114830352

約数和(自身を除く): 83349072

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, 136, 144, 153, 160, 170, 180, 192, 204, 240, 255, 272, 288, 306, 320, 340, 360, 408, 480, 510, 544, 576, 612, 643, 680, 720, 765, 816, 960, 1020, 1088, 1224, 1286, 1360, 1440, 1530, 1632, 1929, 2040, 2448, 2572, 2720, 2880, 3060, 3215, 3264, 3858, 4080, 4896, 5144, 5440, 5787, 6120, 6430, 7716, 8160, 9645, 9792, 10288, 10931, 11574, 12240, 12860, 15432, 16320, 19290, 20576, 21862, 23148, 24480, 25720, 28935, 30864, 32793, 38580, 41152, 43724, 46296, 48960, 51440, 54655, 57870, 61728, 65586, 77160, 87448, 92592, 98379, 102880, 109310, 115740, 123456, 131172, 154320, 163965, 174896, 185184, 196758, 205760, 218620, 231480, 262344, 308640, 327930, 349792, 370368, 393516, 437240, 462960, 491895, 524688, 617280, 655860, 699584, 787032, 874480, 925920, 983790, 1049376, 1311720, 1574064, 1748960, 1851840, 1967580, 2098752, 2623440, 3148128, 3497920, 3935160, 5246880, 6296256, 7870320, 10493760, 15740640, 31481280]

約数ペア:

[(1, 31481280), (2, 15740640), (3, 10493760), (4, 7870320), (5, 6296256), (6, 5246880), (8, 3935160), (9, 3497920), (10, 3148128), (12, 2623440), (15, 2098752), (16, 1967580), (17, 1851840), (18, 1748960), (20, 1574064), (24, 1311720), (30, 1049376), (32, 983790), (34, 925920), (36, 874480), (40, 787032), (45, 699584), (48, 655860), (51, 617280), (60, 524688), (64, 491895), (68, 462960), (72, 437240), (80, 393516), (85, 370368), (90, 349792), (96, 327930), (102, 308640), (120, 262344), (136, 231480), (144, 218620), (153, 205760), (160, 196758), (170, 185184), (180, 174896), (192, 163965), (204, 154320), (240, 131172), (255, 123456), (272, 115740), (288, 109310), (306, 102880), (320, 98379), (340, 92592), (360, 87448), (408, 77160), (480, 65586), (510, 61728), (544, 57870), (576, 54655), (612, 51440), (643, 48960), (680, 46296), (720, 43724), (765, 41152), (816, 38580), (960, 32793), (1020, 30864), (1088, 28935), (1224, 25720), (1286, 24480), (1360, 23148), (1440, 21862), (1530, 20576), (1632, 19290), (1929, 16320), (2040, 15432), (2448, 12860), (2572, 12240), (2720, 11574), (2880, 10931), (3060, 10288), (3215, 9792), (3264, 9645), (3858, 8160), (4080, 7716), (4896, 6430), (5144, 6120), (5440, 5787)]