12815600

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:247

約数の個数: 120

約数和(自身を含む): 36902400

約数和(自身を除く): 24086800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 35, 40, 46, 50, 56, 70, 80, 92, 100, 112, 115, 140, 161, 175, 184, 199, 200, 230, 280, 322, 350, 368, 398, 400, 460, 560, 575, 644, 700, 796, 805, 920, 995, 1150, 1288, 1393, 1400, 1592, 1610, 1840, 1990, 2300, 2576, 2786, 2800, 3184, 3220, 3980, 4025, 4577, 4600, 4975, 5572, 6440, 6965, 7960, 8050, 9154, 9200, 9950, 11144, 12880, 13930, 15920, 16100, 18308, 19900, 22288, 22885, 27860, 32039, 32200, 34825, 36616, 39800, 45770, 55720, 64078, 64400, 69650, 73232, 79600, 91540, 111440, 114425, 128156, 139300, 160195, 183080, 228850, 256312, 278600, 320390, 366160, 457700, 512624, 557200, 640780, 800975, 915400, 1281560, 1601950, 1830800, 2563120, 3203900, 6407800, 12815600]

約数ペア:

[(1, 12815600), (2, 6407800), (4, 3203900), (5, 2563120), (7, 1830800), (8, 1601950), (10, 1281560), (14, 915400), (16, 800975), (20, 640780), (23, 557200), (25, 512624), (28, 457700), (35, 366160), (40, 320390), (46, 278600), (50, 256312), (56, 228850), (70, 183080), (80, 160195), (92, 139300), (100, 128156), (112, 114425), (115, 111440), (140, 91540), (161, 79600), (175, 73232), (184, 69650), (199, 64400), (200, 64078), (230, 55720), (280, 45770), (322, 39800), (350, 36616), (368, 34825), (398, 32200), (400, 32039), (460, 27860), (560, 22885), (575, 22288), (644, 19900), (700, 18308), (796, 16100), (805, 15920), (920, 13930), (995, 12880), (1150, 11144), (1288, 9950), (1393, 9200), (1400, 9154), (1592, 8050), (1610, 7960), (1840, 6965), (1990, 6440), (2300, 5572), (2576, 4975), (2786, 4600), (2800, 4577), (3184, 4025), (3220, 3980)]