18974640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{457}}^1$

素因数の和:646

約数の個数: 80

約数和(自身を含む): 59290848

約数和(自身を除く): 40316208

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 173, 240, 346, 457, 519, 692, 865, 914, 1038, 1371, 1384, 1730, 1828, 2076, 2285, 2595, 2742, 2768, 3460, 3656, 4152, 4570, 5190, 5484, 6855, 6920, 7312, 8304, 9140, 10380, 10968, 13710, 13840, 18280, 20760, 21936, 27420, 36560, 41520, 54840, 79061, 109680, 158122, 237183, 316244, 395305, 474366, 632488, 790610, 948732, 1185915, 1264976, 1581220, 1897464, 2371830, 3162440, 3794928, 4743660, 6324880, 9487320, 18974640]

約数ペア:

[(1, 18974640), (2, 9487320), (3, 6324880), (4, 4743660), (5, 3794928), (6, 3162440), (8, 2371830), (10, 1897464), (12, 1581220), (15, 1264976), (16, 1185915), (20, 948732), (24, 790610), (30, 632488), (40, 474366), (48, 395305), (60, 316244), (80, 237183), (120, 158122), (173, 109680), (240, 79061), (346, 54840), (457, 41520), (519, 36560), (692, 27420), (865, 21936), (914, 20760), (1038, 18280), (1371, 13840), (1384, 13710), (1730, 10968), (1828, 10380), (2076, 9140), (2285, 8304), (2595, 7312), (2742, 6920), (2768, 6855), (3460, 5484), (3656, 5190), (4152, 4570)]