28146560

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1$

素因数の和:248

約数の個数: 128

約数和(自身を含む): 77112000

約数和(自身を除く): 48965440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 128, 130, 136, 160, 170, 199, 208, 221, 260, 272, 320, 340, 398, 416, 442, 520, 544, 640, 680, 796, 832, 884, 995, 1040, 1088, 1105, 1360, 1592, 1664, 1768, 1990, 2080, 2176, 2210, 2587, 2720, 3184, 3383, 3536, 3980, 4160, 4420, 5174, 5440, 6368, 6766, 7072, 7960, 8320, 8840, 10348, 10880, 12736, 12935, 13532, 14144, 15920, 16915, 17680, 20696, 25472, 25870, 27064, 28288, 31840, 33830, 35360, 41392, 43979, 51740, 54128, 63680, 67660, 70720, 82784, 87958, 103480, 108256, 127360, 135320, 141440, 165568, 175916, 206960, 216512, 219895, 270640, 331136, 351832, 413920, 433024, 439790, 541280, 703664, 827840, 879580, 1082560, 1407328, 1655680, 1759160, 2165120, 2814656, 3518320, 5629312, 7036640, 14073280, 28146560]

約数ペア:

[(1, 28146560), (2, 14073280), (4, 7036640), (5, 5629312), (8, 3518320), (10, 2814656), (13, 2165120), (16, 1759160), (17, 1655680), (20, 1407328), (26, 1082560), (32, 879580), (34, 827840), (40, 703664), (52, 541280), (64, 439790), (65, 433024), (68, 413920), (80, 351832), (85, 331136), (104, 270640), (128, 219895), (130, 216512), (136, 206960), (160, 175916), (170, 165568), (199, 141440), (208, 135320), (221, 127360), (260, 108256), (272, 103480), (320, 87958), (340, 82784), (398, 70720), (416, 67660), (442, 63680), (520, 54128), (544, 51740), (640, 43979), (680, 41392), (796, 35360), (832, 33830), (884, 31840), (995, 28288), (1040, 27064), (1088, 25870), (1105, 25472), (1360, 20696), (1592, 17680), (1664, 16915), (1768, 15920), (1990, 14144), (2080, 13532), (2176, 12935), (2210, 12736), (2587, 10880), (2720, 10348), (3184, 8840), (3383, 8320), (3536, 7960), (3980, 7072), (4160, 6766), (4420, 6368), (5174, 5440)]