81574080

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:287

約数の個数: 224

約数和(自身を含む): 302361600

約数和(自身を除く): 220787520

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, 140, 160, 168, 183, 192, 199, 210, 224, 240, 244, 280, 305, 320, 336, 366, 398, 420, 427, 448, 480, 488, 560, 597, 610, 672, 732, 796, 840, 854, 915, 960, 976, 995, 1120, 1194, 1220, 1281, 1344, 1393, 1464, 1592, 1680, 1708, 1830, 1952, 1990, 2135, 2240, 2388, 2440, 2562, 2786, 2928, 2985, 3184, 3360, 3416, 3660, 3904, 3980, 4179, 4270, 4776, 4880, 5124, 5572, 5856, 5970, 6368, 6405, 6720, 6832, 6965, 7320, 7960, 8358, 8540, 9552, 9760, 10248, 11144, 11712, 11940, 12139, 12736, 12810, 13664, 13930, 14640, 15920, 16716, 17080, 19104, 19520, 20496, 20895, 22288, 23880, 24278, 25620, 27328, 27860, 29280, 31840, 33432, 34160, 36417, 38208, 40992, 41790, 44576, 47760, 48556, 51240, 55720, 58560, 60695, 63680, 66864, 68320, 72834, 81984, 83580, 84973, 89152, 95520, 97112, 102480, 111440, 121390, 133728, 136640, 145668, 167160, 169946, 182085, 191040, 194224, 204960, 222880, 242780, 254919, 267456, 291336, 334320, 339892, 364170, 388448, 409920, 424865, 445760, 485560, 509838, 582672, 668640, 679784, 728340, 776896, 849730, 971120, 1019676, 1165344, 1274595, 1337280, 1359568, 1456680, 1699460, 1942240, 2039352, 2330688, 2549190, 2719136, 2913360, 3398920, 3884480, 4078704, 5098380, 5438272, 5826720, 6797840, 8157408, 10196760, 11653440, 13595680, 16314816, 20393520, 27191360, 40787040, 81574080]

約数ペア:

[(1, 81574080), (2, 40787040), (3, 27191360), (4, 20393520), (5, 16314816), (6, 13595680), (7, 11653440), (8, 10196760), (10, 8157408), (12, 6797840), (14, 5826720), (15, 5438272), (16, 5098380), (20, 4078704), (21, 3884480), (24, 3398920), (28, 2913360), (30, 2719136), (32, 2549190), (35, 2330688), (40, 2039352), (42, 1942240), (48, 1699460), (56, 1456680), (60, 1359568), (61, 1337280), (64, 1274595), (70, 1165344), (80, 1019676), (84, 971120), (96, 849730), (105, 776896), (112, 728340), (120, 679784), (122, 668640), (140, 582672), (160, 509838), (168, 485560), (183, 445760), (192, 424865), (199, 409920), (210, 388448), (224, 364170), (240, 339892), (244, 334320), (280, 291336), (305, 267456), (320, 254919), (336, 242780), (366, 222880), (398, 204960), (420, 194224), (427, 191040), (448, 182085), (480, 169946), (488, 167160), (560, 145668), (597, 136640), (610, 133728), (672, 121390), (732, 111440), (796, 102480), (840, 97112), (854, 95520), (915, 89152), (960, 84973), (976, 83580), (995, 81984), (1120, 72834), (1194, 68320), (1220, 66864), (1281, 63680), (1344, 60695), (1393, 58560), (1464, 55720), (1592, 51240), (1680, 48556), (1708, 47760), (1830, 44576), (1952, 41790), (1990, 40992), (2135, 38208), (2240, 36417), (2388, 34160), (2440, 33432), (2562, 31840), (2786, 29280), (2928, 27860), (2985, 27328), (3184, 25620), (3360, 24278), (3416, 23880), (3660, 22288), (3904, 20895), (3980, 20496), (4179, 19520), (4270, 19104), (4776, 17080), (4880, 16716), (5124, 15920), (5572, 14640), (5856, 13930), (5970, 13664), (6368, 12810), (6405, 12736), (6720, 12139), (6832, 11940), (6965, 11712), (7320, 11144), (7960, 10248), (8358, 9760), (8540, 9552)]