78087760

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2$

素因数の和:141

約数の個数: 120

約数和(自身を含む): 200987136

約数和(自身を除く): 122899376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 37, 40, 46, 62, 74, 80, 92, 115, 124, 148, 155, 184, 185, 230, 248, 296, 310, 368, 370, 460, 496, 592, 620, 713, 740, 851, 920, 1147, 1240, 1369, 1426, 1480, 1702, 1840, 2294, 2480, 2738, 2852, 2960, 3404, 3565, 4255, 4588, 5476, 5704, 5735, 6808, 6845, 7130, 8510, 9176, 10952, 11408, 11470, 13616, 13690, 14260, 17020, 18352, 21904, 22940, 26381, 27380, 28520, 31487, 34040, 42439, 45880, 52762, 54760, 57040, 62974, 68080, 84878, 91760, 105524, 109520, 125948, 131905, 157435, 169756, 211048, 212195, 251896, 263810, 314870, 339512, 422096, 424390, 503792, 527620, 629740, 679024, 848780, 976097, 1055240, 1259480, 1697560, 1952194, 2110480, 2518960, 3395120, 3904388, 4880485, 7808776, 9760970, 15617552, 19521940, 39043880, 78087760]

約数ペア:

[(1, 78087760), (2, 39043880), (4, 19521940), (5, 15617552), (8, 9760970), (10, 7808776), (16, 4880485), (20, 3904388), (23, 3395120), (31, 2518960), (37, 2110480), (40, 1952194), (46, 1697560), (62, 1259480), (74, 1055240), (80, 976097), (92, 848780), (115, 679024), (124, 629740), (148, 527620), (155, 503792), (184, 424390), (185, 422096), (230, 339512), (248, 314870), (296, 263810), (310, 251896), (368, 212195), (370, 211048), (460, 169756), (496, 157435), (592, 131905), (620, 125948), (713, 109520), (740, 105524), (851, 91760), (920, 84878), (1147, 68080), (1240, 62974), (1369, 57040), (1426, 54760), (1480, 52762), (1702, 45880), (1840, 42439), (2294, 34040), (2480, 31487), (2738, 28520), (2852, 27380), (2960, 26381), (3404, 22940), (3565, 21904), (4255, 18352), (4588, 17020), (5476, 14260), (5704, 13690), (5735, 13616), (6808, 11470), (6845, 11408), (7130, 10952), (8510, 9176)]