161388920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{859}}^1$

素因数の和:949

約数の個数: 128

約数和(自身を含む): 460684800

約数和(自身を除く): 299295880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 61, 70, 77, 88, 110, 122, 140, 154, 220, 244, 280, 305, 308, 385, 427, 440, 488, 610, 616, 671, 770, 854, 859, 1220, 1342, 1540, 1708, 1718, 2135, 2440, 2684, 3080, 3355, 3416, 3436, 4270, 4295, 4697, 5368, 6013, 6710, 6872, 8540, 8590, 9394, 9449, 12026, 13420, 17080, 17180, 18788, 18898, 23485, 24052, 26840, 30065, 34360, 37576, 37796, 46970, 47245, 48104, 52399, 60130, 66143, 75592, 93940, 94490, 104798, 120260, 132286, 187880, 188980, 209596, 240520, 261995, 264572, 330715, 366793, 377960, 419192, 523990, 529144, 576389, 661430, 733586, 1047980, 1152778, 1322860, 1467172, 1833965, 2095960, 2305556, 2645720, 2881945, 2934344, 3667930, 4034723, 4611112, 5763890, 7335860, 8069446, 11527780, 14671720, 16138892, 20173615, 23055560, 32277784, 40347230, 80694460, 161388920]

約数ペア:

[(1, 161388920), (2, 80694460), (4, 40347230), (5, 32277784), (7, 23055560), (8, 20173615), (10, 16138892), (11, 14671720), (14, 11527780), (20, 8069446), (22, 7335860), (28, 5763890), (35, 4611112), (40, 4034723), (44, 3667930), (55, 2934344), (56, 2881945), (61, 2645720), (70, 2305556), (77, 2095960), (88, 1833965), (110, 1467172), (122, 1322860), (140, 1152778), (154, 1047980), (220, 733586), (244, 661430), (280, 576389), (305, 529144), (308, 523990), (385, 419192), (427, 377960), (440, 366793), (488, 330715), (610, 264572), (616, 261995), (671, 240520), (770, 209596), (854, 188980), (859, 187880), (1220, 132286), (1342, 120260), (1540, 104798), (1708, 94490), (1718, 93940), (2135, 75592), (2440, 66143), (2684, 60130), (3080, 52399), (3355, 48104), (3416, 47245), (3436, 46970), (4270, 37796), (4295, 37576), (4697, 34360), (5368, 30065), (6013, 26840), (6710, 24052), (6872, 23485), (8540, 18898), (8590, 18788), (9394, 17180), (9449, 17080), (12026, 13420)]