819840

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1$

素因数の和:90

約数の個数: 128

約数和(自身を含む): 3035520

約数和(自身を除く): 2215680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 61, 64, 70, 80, 84, 96, 105, 112, 120, 122, 128, 140, 160, 168, 183, 192, 210, 224, 240, 244, 280, 305, 320, 336, 366, 384, 420, 427, 448, 480, 488, 560, 610, 640, 672, 732, 840, 854, 896, 915, 960, 976, 1120, 1220, 1281, 1344, 1464, 1680, 1708, 1830, 1920, 1952, 2135, 2240, 2440, 2562, 2688, 2928, 3360, 3416, 3660, 3904, 4270, 4480, 4880, 5124, 5856, 6405, 6720, 6832, 7320, 7808, 8540, 9760, 10248, 11712, 12810, 13440, 13664, 14640, 17080, 19520, 20496, 23424, 25620, 27328, 29280, 34160, 39040, 40992, 51240, 54656, 58560, 68320, 81984, 102480, 117120, 136640, 163968, 204960, 273280, 409920, 819840]

約数ペア:

[(1, 819840), (2, 409920), (3, 273280), (4, 204960), (5, 163968), (6, 136640), (7, 117120), (8, 102480), (10, 81984), (12, 68320), (14, 58560), (15, 54656), (16, 51240), (20, 40992), (21, 39040), (24, 34160), (28, 29280), (30, 27328), (32, 25620), (35, 23424), (40, 20496), (42, 19520), (48, 17080), (56, 14640), (60, 13664), (61, 13440), (64, 12810), (70, 11712), (80, 10248), (84, 9760), (96, 8540), (105, 7808), (112, 7320), (120, 6832), (122, 6720), (128, 6405), (140, 5856), (160, 5124), (168, 4880), (183, 4480), (192, 4270), (210, 3904), (224, 3660), (240, 3416), (244, 3360), (280, 2928), (305, 2688), (320, 2562), (336, 2440), (366, 2240), (384, 2135), (420, 1952), (427, 1920), (448, 1830), (480, 1708), (488, 1680), (560, 1464), (610, 1344), (640, 1281), (672, 1220), (732, 1120), (840, 976), (854, 960), (896, 915)]