31445760

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:474

約数の個数: 144

約数和(自身を含む): 105960960

約数和(自身を除く): 74515200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 64, 76, 80, 95, 96, 114, 120, 128, 152, 160, 190, 192, 228, 240, 256, 285, 304, 320, 380, 384, 431, 456, 480, 570, 608, 640, 760, 768, 862, 912, 960, 1140, 1216, 1280, 1293, 1520, 1724, 1824, 1920, 2155, 2280, 2432, 2586, 3040, 3448, 3648, 3840, 4310, 4560, 4864, 5172, 6080, 6465, 6896, 7296, 8189, 8620, 9120, 10344, 12160, 12930, 13792, 14592, 16378, 17240, 18240, 20688, 24320, 24567, 25860, 27584, 32756, 34480, 36480, 40945, 41376, 49134, 51720, 55168, 65512, 68960, 72960, 81890, 82752, 98268, 103440, 110336, 122835, 131024, 137920, 163780, 165504, 196536, 206880, 245670, 262048, 275840, 327560, 331008, 393072, 413760, 491340, 524096, 551680, 655120, 786144, 827520, 982680, 1048192, 1310240, 1572288, 1655040, 1965360, 2096384, 2620480, 3144576, 3930720, 5240960, 6289152, 7861440, 10481920, 15722880, 31445760]

約数ペア:

[(1, 31445760), (2, 15722880), (3, 10481920), (4, 7861440), (5, 6289152), (6, 5240960), (8, 3930720), (10, 3144576), (12, 2620480), (15, 2096384), (16, 1965360), (19, 1655040), (20, 1572288), (24, 1310240), (30, 1048192), (32, 982680), (38, 827520), (40, 786144), (48, 655120), (57, 551680), (60, 524096), (64, 491340), (76, 413760), (80, 393072), (95, 331008), (96, 327560), (114, 275840), (120, 262048), (128, 245670), (152, 206880), (160, 196536), (190, 165504), (192, 163780), (228, 137920), (240, 131024), (256, 122835), (285, 110336), (304, 103440), (320, 98268), (380, 82752), (384, 81890), (431, 72960), (456, 68960), (480, 65512), (570, 55168), (608, 51720), (640, 49134), (760, 41376), (768, 40945), (862, 36480), (912, 34480), (960, 32756), (1140, 27584), (1216, 25860), (1280, 24567), (1293, 24320), (1520, 20688), (1724, 18240), (1824, 17240), (1920, 16378), (2155, 14592), (2280, 13792), (2432, 12930), (2586, 12160), (3040, 10344), (3448, 9120), (3648, 8620), (3840, 8189), (4310, 7296), (4560, 6896), (4864, 6465), (5172, 6080)]