256045140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{443}}^1$

素因数の和:503

約数の個数: 216

約数和(自身を含む): 887271840

約数和(自身を除く): 631226700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 169, 171, 180, 190, 195, 228, 234, 247, 260, 285, 338, 342, 380, 390, 443, 468, 494, 507, 570, 585, 676, 684, 741, 780, 845, 855, 886, 988, 1014, 1140, 1170, 1235, 1329, 1482, 1521, 1690, 1710, 1772, 2028, 2215, 2223, 2340, 2470, 2535, 2658, 2964, 3042, 3211, 3380, 3420, 3705, 3987, 4430, 4446, 4940, 5070, 5316, 5759, 6084, 6422, 6645, 7410, 7605, 7974, 8417, 8860, 8892, 9633, 10140, 11115, 11518, 12844, 13290, 14820, 15210, 15948, 16055, 16834, 17277, 19266, 19935, 22230, 23036, 25251, 26580, 28795, 28899, 30420, 32110, 33668, 34554, 38532, 39870, 42085, 44460, 48165, 50502, 51831, 57590, 57798, 64220, 69108, 74867, 75753, 79740, 84170, 86385, 96330, 101004, 103662, 109421, 115180, 115596, 126255, 144495, 149734, 151506, 168340, 172770, 192660, 207324, 218842, 224601, 252510, 259155, 288990, 299468, 303012, 328263, 345540, 374335, 378765, 437684, 449202, 505020, 518310, 547105, 577980, 656526, 673803, 748670, 757530, 898404, 984789, 1036620, 1094210, 1123005, 1313052, 1347606, 1422473, 1497340, 1515060, 1641315, 1969578, 2188420, 2246010, 2695212, 2844946, 3282630, 3369015, 3939156, 4267419, 4492020, 4923945, 5689892, 6565260, 6738030, 7112365, 8534838, 9847890, 12802257, 13476060, 14224730, 17069676, 19695780, 21337095, 25604514, 28449460, 42674190, 51209028, 64011285, 85348380, 128022570, 256045140]

約数ペア:

[(1, 256045140), (2, 128022570), (3, 85348380), (4, 64011285), (5, 51209028), (6, 42674190), (9, 28449460), (10, 25604514), (12, 21337095), (13, 19695780), (15, 17069676), (18, 14224730), (19, 13476060), (20, 12802257), (26, 9847890), (30, 8534838), (36, 7112365), (38, 6738030), (39, 6565260), (45, 5689892), (52, 4923945), (57, 4492020), (60, 4267419), (65, 3939156), (76, 3369015), (78, 3282630), (90, 2844946), (95, 2695212), (114, 2246010), (117, 2188420), (130, 1969578), (156, 1641315), (169, 1515060), (171, 1497340), (180, 1422473), (190, 1347606), (195, 1313052), (228, 1123005), (234, 1094210), (247, 1036620), (260, 984789), (285, 898404), (338, 757530), (342, 748670), (380, 673803), (390, 656526), (443, 577980), (468, 547105), (494, 518310), (507, 505020), (570, 449202), (585, 437684), (676, 378765), (684, 374335), (741, 345540), (780, 328263), (845, 303012), (855, 299468), (886, 288990), (988, 259155), (1014, 252510), (1140, 224601), (1170, 218842), (1235, 207324), (1329, 192660), (1482, 172770), (1521, 168340), (1690, 151506), (1710, 149734), (1772, 144495), (2028, 126255), (2215, 115596), (2223, 115180), (2340, 109421), (2470, 103662), (2535, 101004), (2658, 96330), (2964, 86385), (3042, 84170), (3211, 79740), (3380, 75753), (3420, 74867), (3705, 69108), (3987, 64220), (4430, 57798), (4446, 57590), (4940, 51831), (5070, 50502), (5316, 48165), (5759, 44460), (6084, 42085), (6422, 39870), (6645, 38532), (7410, 34554), (7605, 33668), (7974, 32110), (8417, 30420), (8860, 28899), (8892, 28795), (9633, 26580), (10140, 25251), (11115, 23036), (11518, 22230), (12844, 19935), (13290, 19266), (14820, 17277), (15210, 16834), (15948, 16055)]