51811920

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{83}}^1$

素因数の和:139

約数の個数: 240

約数和(自身を含む): 191862720

約数和(自身を除く): 140050800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 83, 85, 90, 102, 108, 120, 135, 136, 144, 153, 166, 170, 180, 204, 216, 240, 249, 255, 270, 272, 289, 306, 332, 340, 360, 408, 415, 432, 459, 498, 510, 540, 578, 612, 664, 680, 720, 747, 765, 816, 830, 867, 918, 996, 1020, 1080, 1156, 1224, 1245, 1328, 1360, 1411, 1445, 1494, 1530, 1660, 1734, 1836, 1992, 2040, 2160, 2241, 2295, 2312, 2448, 2490, 2601, 2822, 2890, 2988, 3060, 3320, 3468, 3672, 3735, 3984, 4080, 4233, 4335, 4482, 4590, 4624, 4980, 5202, 5644, 5780, 5976, 6120, 6640, 6936, 7055, 7344, 7470, 7803, 8466, 8670, 8964, 9180, 9960, 10404, 11205, 11288, 11560, 11952, 12240, 12699, 13005, 13872, 14110, 14940, 15606, 16932, 17340, 17928, 18360, 19920, 20808, 21165, 22410, 22576, 23120, 23987, 25398, 26010, 28220, 29880, 31212, 33864, 34680, 35856, 36720, 38097, 39015, 41616, 42330, 44820, 47974, 50796, 52020, 56440, 59760, 62424, 63495, 67728, 69360, 71961, 76194, 78030, 84660, 89640, 95948, 101592, 104040, 112880, 119935, 124848, 126990, 143922, 152388, 156060, 169320, 179280, 190485, 191896, 203184, 208080, 215883, 239870, 253980, 287844, 304776, 312120, 338640, 359805, 380970, 383792, 431766, 479740, 507960, 575688, 609552, 624240, 647649, 719610, 761940, 863532, 959480, 1015920, 1079415, 1151376, 1295298, 1439220, 1523880, 1727064, 1918960, 2158830, 2590596, 2878440, 3047760, 3238245, 3454128, 4317660, 5181192, 5756880, 6476490, 8635320, 10362384, 12952980, 17270640, 25905960, 51811920]

約数ペア:

[(1, 51811920), (2, 25905960), (3, 17270640), (4, 12952980), (5, 10362384), (6, 8635320), (8, 6476490), (9, 5756880), (10, 5181192), (12, 4317660), (15, 3454128), (16, 3238245), (17, 3047760), (18, 2878440), (20, 2590596), (24, 2158830), (27, 1918960), (30, 1727064), (34, 1523880), (36, 1439220), (40, 1295298), (45, 1151376), (48, 1079415), (51, 1015920), (54, 959480), (60, 863532), (68, 761940), (72, 719610), (80, 647649), (83, 624240), (85, 609552), (90, 575688), (102, 507960), (108, 479740), (120, 431766), (135, 383792), (136, 380970), (144, 359805), (153, 338640), (166, 312120), (170, 304776), (180, 287844), (204, 253980), (216, 239870), (240, 215883), (249, 208080), (255, 203184), (270, 191896), (272, 190485), (289, 179280), (306, 169320), (332, 156060), (340, 152388), (360, 143922), (408, 126990), (415, 124848), (432, 119935), (459, 112880), (498, 104040), (510, 101592), (540, 95948), (578, 89640), (612, 84660), (664, 78030), (680, 76194), (720, 71961), (747, 69360), (765, 67728), (816, 63495), (830, 62424), (867, 59760), (918, 56440), (996, 52020), (1020, 50796), (1080, 47974), (1156, 44820), (1224, 42330), (1245, 41616), (1328, 39015), (1360, 38097), (1411, 36720), (1445, 35856), (1494, 34680), (1530, 33864), (1660, 31212), (1734, 29880), (1836, 28220), (1992, 26010), (2040, 25398), (2160, 23987), (2241, 23120), (2295, 22576), (2312, 22410), (2448, 21165), (2490, 20808), (2601, 19920), (2822, 18360), (2890, 17928), (2988, 17340), (3060, 16932), (3320, 15606), (3468, 14940), (3672, 14110), (3735, 13872), (3984, 13005), (4080, 12699), (4233, 12240), (4335, 11952), (4482, 11560), (4590, 11288), (4624, 11205), (4980, 10404), (5202, 9960), (5644, 9180), (5780, 8964), (5976, 8670), (6120, 8466), (6640, 7803), (6936, 7470), (7055, 7344)]