18133760

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:509

約数の個数: 72

約数和(自身を含む): 44935296

約数和(自身を除く): 26801536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 457, 496, 620, 640, 914, 992, 1240, 1280, 1828, 1984, 2285, 2480, 3656, 3968, 4570, 4960, 7312, 7936, 9140, 9920, 14167, 14624, 18280, 19840, 28334, 29248, 36560, 39680, 56668, 58496, 70835, 73120, 113336, 116992, 141670, 146240, 226672, 283340, 292480, 453344, 566680, 584960, 906688, 1133360, 1813376, 2266720, 3626752, 4533440, 9066880, 18133760]

約数ペア:

[(1, 18133760), (2, 9066880), (4, 4533440), (5, 3626752), (8, 2266720), (10, 1813376), (16, 1133360), (20, 906688), (31, 584960), (32, 566680), (40, 453344), (62, 292480), (64, 283340), (80, 226672), (124, 146240), (128, 141670), (155, 116992), (160, 113336), (248, 73120), (256, 70835), (310, 58496), (320, 56668), (457, 39680), (496, 36560), (620, 29248), (640, 28334), (914, 19840), (992, 18280), (1240, 14624), (1280, 14167), (1828, 9920), (1984, 9140), (2285, 7936), (2480, 7312), (3656, 4960), (3968, 4570)]