31491840

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 103017600

約数和(自身を除く): 71525760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 59, 60, 64, 80, 96, 118, 120, 128, 139, 160, 177, 192, 236, 240, 256, 278, 295, 320, 354, 384, 417, 472, 480, 556, 590, 640, 695, 708, 768, 834, 885, 944, 960, 1112, 1180, 1280, 1390, 1416, 1668, 1770, 1888, 1920, 2085, 2224, 2360, 2780, 2832, 3336, 3540, 3776, 3840, 4170, 4448, 4720, 5560, 5664, 6672, 7080, 7552, 8201, 8340, 8896, 9440, 11120, 11328, 13344, 14160, 15104, 16402, 16680, 17792, 18880, 22240, 22656, 24603, 26688, 28320, 32804, 33360, 35584, 37760, 41005, 44480, 45312, 49206, 53376, 56640, 65608, 66720, 75520, 82010, 88960, 98412, 106752, 113280, 123015, 131216, 133440, 164020, 177920, 196824, 226560, 246030, 262432, 266880, 328040, 393648, 492060, 524864, 533760, 656080, 787296, 984120, 1049728, 1312160, 1574592, 1968240, 2099456, 2624320, 3149184, 3936480, 5248640, 6298368, 7872960, 10497280, 15745920, 31491840]

約数ペア:

[(1, 31491840), (2, 15745920), (3, 10497280), (4, 7872960), (5, 6298368), (6, 5248640), (8, 3936480), (10, 3149184), (12, 2624320), (15, 2099456), (16, 1968240), (20, 1574592), (24, 1312160), (30, 1049728), (32, 984120), (40, 787296), (48, 656080), (59, 533760), (60, 524864), (64, 492060), (80, 393648), (96, 328040), (118, 266880), (120, 262432), (128, 246030), (139, 226560), (160, 196824), (177, 177920), (192, 164020), (236, 133440), (240, 131216), (256, 123015), (278, 113280), (295, 106752), (320, 98412), (354, 88960), (384, 82010), (417, 75520), (472, 66720), (480, 65608), (556, 56640), (590, 53376), (640, 49206), (695, 45312), (708, 44480), (768, 41005), (834, 37760), (885, 35584), (944, 33360), (960, 32804), (1112, 28320), (1180, 26688), (1280, 24603), (1390, 22656), (1416, 22240), (1668, 18880), (1770, 17792), (1888, 16680), (1920, 16402), (2085, 15104), (2224, 14160), (2360, 13344), (2780, 11328), (2832, 11120), (3336, 9440), (3540, 8896), (3776, 8340), (3840, 8201), (4170, 7552), (4448, 7080), (4720, 6672), (5560, 5664)]