28974400

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:241

約数の個数: 168

約数和(自身を含む): 88188800

約数和(自身を除く): 59214400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 50, 52, 56, 64, 65, 70, 80, 91, 100, 104, 112, 130, 140, 160, 175, 182, 199, 200, 208, 224, 260, 280, 320, 325, 350, 364, 398, 400, 416, 448, 455, 520, 560, 650, 700, 728, 796, 800, 832, 910, 995, 1040, 1120, 1300, 1393, 1400, 1456, 1592, 1600, 1820, 1990, 2080, 2240, 2275, 2587, 2600, 2786, 2800, 2912, 3184, 3640, 3980, 4160, 4550, 4975, 5174, 5200, 5572, 5600, 5824, 6368, 6965, 7280, 7960, 9100, 9950, 10348, 10400, 11144, 11200, 12736, 12935, 13930, 14560, 15920, 18109, 18200, 19900, 20696, 20800, 22288, 25870, 27860, 29120, 31840, 34825, 36218, 36400, 39800, 41392, 44576, 51740, 55720, 63680, 64675, 69650, 72436, 72800, 79600, 82784, 89152, 90545, 103480, 111440, 129350, 139300, 144872, 145600, 159200, 165568, 181090, 206960, 222880, 258700, 278600, 289744, 318400, 362180, 413920, 445760, 452725, 517400, 557200, 579488, 724360, 827840, 905450, 1034800, 1114400, 1158976, 1448720, 1810900, 2069600, 2228800, 2897440, 3621800, 4139200, 5794880, 7243600, 14487200, 28974400]

約数ペア:

[(1, 28974400), (2, 14487200), (4, 7243600), (5, 5794880), (7, 4139200), (8, 3621800), (10, 2897440), (13, 2228800), (14, 2069600), (16, 1810900), (20, 1448720), (25, 1158976), (26, 1114400), (28, 1034800), (32, 905450), (35, 827840), (40, 724360), (50, 579488), (52, 557200), (56, 517400), (64, 452725), (65, 445760), (70, 413920), (80, 362180), (91, 318400), (100, 289744), (104, 278600), (112, 258700), (130, 222880), (140, 206960), (160, 181090), (175, 165568), (182, 159200), (199, 145600), (200, 144872), (208, 139300), (224, 129350), (260, 111440), (280, 103480), (320, 90545), (325, 89152), (350, 82784), (364, 79600), (398, 72800), (400, 72436), (416, 69650), (448, 64675), (455, 63680), (520, 55720), (560, 51740), (650, 44576), (700, 41392), (728, 39800), (796, 36400), (800, 36218), (832, 34825), (910, 31840), (995, 29120), (1040, 27860), (1120, 25870), (1300, 22288), (1393, 20800), (1400, 20696), (1456, 19900), (1592, 18200), (1600, 18109), (1820, 15920), (1990, 14560), (2080, 13930), (2240, 12935), (2275, 12736), (2587, 11200), (2600, 11144), (2786, 10400), (2800, 10348), (2912, 9950), (3184, 9100), (3640, 7960), (3980, 7280), (4160, 6965), (4550, 6368), (4975, 5824), (5174, 5600), (5200, 5572)]