31575780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1$

素因数の和:330

約数の個数: 144

約数和(自身を含む): 103783680

約数和(自身を除く): 72207900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 29, 30, 36, 45, 46, 58, 60, 69, 87, 90, 92, 115, 116, 138, 145, 174, 180, 207, 230, 261, 263, 276, 290, 345, 348, 414, 435, 460, 522, 526, 580, 667, 690, 789, 828, 870, 1035, 1044, 1052, 1305, 1315, 1334, 1380, 1578, 1740, 2001, 2070, 2367, 2610, 2630, 2668, 3156, 3335, 3945, 4002, 4140, 4734, 5220, 5260, 6003, 6049, 6670, 7627, 7890, 8004, 9468, 10005, 11835, 12006, 12098, 13340, 15254, 15780, 18147, 20010, 22881, 23670, 24012, 24196, 30015, 30245, 30508, 36294, 38135, 40020, 45762, 47340, 54441, 60030, 60490, 68643, 72588, 76270, 90735, 91524, 108882, 114405, 120060, 120980, 137286, 152540, 175421, 181470, 217764, 228810, 272205, 274572, 343215, 350842, 362940, 457620, 526263, 544410, 686430, 701684, 877105, 1052526, 1088820, 1372860, 1578789, 1754210, 2105052, 2631315, 3157578, 3508420, 5262630, 6315156, 7893945, 10525260, 15787890, 31575780]

約数ペア:

[(1, 31575780), (2, 15787890), (3, 10525260), (4, 7893945), (5, 6315156), (6, 5262630), (9, 3508420), (10, 3157578), (12, 2631315), (15, 2105052), (18, 1754210), (20, 1578789), (23, 1372860), (29, 1088820), (30, 1052526), (36, 877105), (45, 701684), (46, 686430), (58, 544410), (60, 526263), (69, 457620), (87, 362940), (90, 350842), (92, 343215), (115, 274572), (116, 272205), (138, 228810), (145, 217764), (174, 181470), (180, 175421), (207, 152540), (230, 137286), (261, 120980), (263, 120060), (276, 114405), (290, 108882), (345, 91524), (348, 90735), (414, 76270), (435, 72588), (460, 68643), (522, 60490), (526, 60030), (580, 54441), (667, 47340), (690, 45762), (789, 40020), (828, 38135), (870, 36294), (1035, 30508), (1044, 30245), (1052, 30015), (1305, 24196), (1315, 24012), (1334, 23670), (1380, 22881), (1578, 20010), (1740, 18147), (2001, 15780), (2070, 15254), (2367, 13340), (2610, 12098), (2630, 12006), (2668, 11835), (3156, 10005), (3335, 9468), (3945, 8004), (4002, 7890), (4140, 7627), (4734, 6670), (5220, 6049), (5260, 6003)]