31997440

素因数分解:

$2^9\times 5^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1$

素因数の和:483

約数の個数: 80

約数和(自身を含む): 79548480

約数和(自身を除く): 47551040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 431, 464, 512, 580, 640, 862, 928, 1160, 1280, 1724, 1856, 2155, 2320, 2560, 3448, 3712, 4310, 4640, 6896, 7424, 8620, 9280, 12499, 13792, 14848, 17240, 18560, 24998, 27584, 34480, 37120, 49996, 55168, 62495, 68960, 74240, 99992, 110336, 124990, 137920, 199984, 220672, 249980, 275840, 399968, 499960, 551680, 799936, 999920, 1103360, 1599872, 1999840, 3199744, 3999680, 6399488, 7999360, 15998720, 31997440]

約数ペア:

[(1, 31997440), (2, 15998720), (4, 7999360), (5, 6399488), (8, 3999680), (10, 3199744), (16, 1999840), (20, 1599872), (29, 1103360), (32, 999920), (40, 799936), (58, 551680), (64, 499960), (80, 399968), (116, 275840), (128, 249980), (145, 220672), (160, 199984), (232, 137920), (256, 124990), (290, 110336), (320, 99992), (431, 74240), (464, 68960), (512, 62495), (580, 55168), (640, 49996), (862, 37120), (928, 34480), (1160, 27584), (1280, 24998), (1724, 18560), (1856, 17240), (2155, 14848), (2320, 13792), (2560, 12499), (3448, 9280), (3712, 8620), (4310, 7424), (4640, 6896)]