78640560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{457}}^1$

素因数の和:715

約数の個数: 120

約数和(自身を含む): 265786560

約数和(自身を除く): 187146000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 239, 240, 360, 457, 478, 717, 720, 914, 956, 1195, 1371, 1434, 1828, 1912, 2151, 2285, 2390, 2742, 2868, 3585, 3656, 3824, 4113, 4302, 4570, 4780, 5484, 5736, 6855, 7170, 7312, 8226, 8604, 9140, 9560, 10755, 10968, 11472, 13710, 14340, 16452, 17208, 18280, 19120, 20565, 21510, 21936, 27420, 28680, 32904, 34416, 36560, 41130, 43020, 54840, 57360, 65808, 82260, 86040, 109223, 109680, 164520, 172080, 218446, 327669, 329040, 436892, 546115, 655338, 873784, 983007, 1092230, 1310676, 1638345, 1747568, 1966014, 2184460, 2621352, 3276690, 3932028, 4368920, 4915035, 5242704, 6553380, 7864056, 8737840, 9830070, 13106760, 15728112, 19660140, 26213520, 39320280, 78640560]

約数ペア:

[(1, 78640560), (2, 39320280), (3, 26213520), (4, 19660140), (5, 15728112), (6, 13106760), (8, 9830070), (9, 8737840), (10, 7864056), (12, 6553380), (15, 5242704), (16, 4915035), (18, 4368920), (20, 3932028), (24, 3276690), (30, 2621352), (36, 2184460), (40, 1966014), (45, 1747568), (48, 1638345), (60, 1310676), (72, 1092230), (80, 983007), (90, 873784), (120, 655338), (144, 546115), (180, 436892), (239, 329040), (240, 327669), (360, 218446), (457, 172080), (478, 164520), (717, 109680), (720, 109223), (914, 86040), (956, 82260), (1195, 65808), (1371, 57360), (1434, 54840), (1828, 43020), (1912, 41130), (2151, 36560), (2285, 34416), (2390, 32904), (2742, 28680), (2868, 27420), (3585, 21936), (3656, 21510), (3824, 20565), (4113, 19120), (4302, 18280), (4570, 17208), (4780, 16452), (5484, 14340), (5736, 13710), (6855, 11472), (7170, 10968), (7312, 10755), (8226, 9560), (8604, 9140)]