19575990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:243

約数の個数: 144

約数和(自身を含む): 62101728

約数和(自身を除く): 42525738

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 30, 35, 42, 45, 46, 49, 63, 69, 70, 90, 98, 105, 115, 126, 138, 147, 161, 193, 207, 210, 230, 245, 294, 315, 322, 345, 386, 414, 441, 483, 490, 579, 630, 690, 735, 805, 882, 965, 966, 1035, 1127, 1158, 1351, 1449, 1470, 1610, 1737, 1930, 2070, 2205, 2254, 2415, 2702, 2895, 2898, 3381, 3474, 4053, 4410, 4439, 4830, 5635, 5790, 6755, 6762, 7245, 8106, 8685, 8878, 9457, 10143, 11270, 12159, 13317, 13510, 14490, 16905, 17370, 18914, 20265, 20286, 22195, 24318, 26634, 28371, 31073, 33810, 39951, 40530, 44390, 47285, 50715, 56742, 60795, 62146, 66585, 79902, 85113, 93219, 94570, 101430, 121590, 133170, 141855, 155365, 170226, 186438, 199755, 217511, 279657, 283710, 310730, 399510, 425565, 435022, 466095, 559314, 652533, 851130, 932190, 1087555, 1305066, 1398285, 1957599, 2175110, 2796570, 3262665, 3915198, 6525330, 9787995, 19575990]

約数ペア:

[(1, 19575990), (2, 9787995), (3, 6525330), (5, 3915198), (6, 3262665), (7, 2796570), (9, 2175110), (10, 1957599), (14, 1398285), (15, 1305066), (18, 1087555), (21, 932190), (23, 851130), (30, 652533), (35, 559314), (42, 466095), (45, 435022), (46, 425565), (49, 399510), (63, 310730), (69, 283710), (70, 279657), (90, 217511), (98, 199755), (105, 186438), (115, 170226), (126, 155365), (138, 141855), (147, 133170), (161, 121590), (193, 101430), (207, 94570), (210, 93219), (230, 85113), (245, 79902), (294, 66585), (315, 62146), (322, 60795), (345, 56742), (386, 50715), (414, 47285), (441, 44390), (483, 40530), (490, 39951), (579, 33810), (630, 31073), (690, 28371), (735, 26634), (805, 24318), (882, 22195), (965, 20286), (966, 20265), (1035, 18914), (1127, 17370), (1158, 16905), (1351, 14490), (1449, 13510), (1470, 13317), (1610, 12159), (1737, 11270), (1930, 10143), (2070, 9457), (2205, 8878), (2254, 8685), (2415, 8106), (2702, 7245), (2895, 6762), (2898, 6755), (3381, 5790), (3474, 5635), (4053, 4830), (4410, 4439)]