19400730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{907}}^1$

素因数の和:971

約数の個数: 64

約数和(自身を含む): 50208768

約数和(自身を除く): 30808038

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 31, 46, 62, 69, 93, 115, 138, 155, 186, 230, 310, 345, 465, 690, 713, 907, 930, 1426, 1814, 2139, 2721, 3565, 4278, 4535, 5442, 7130, 9070, 10695, 13605, 20861, 21390, 27210, 28117, 41722, 56234, 62583, 84351, 104305, 125166, 140585, 168702, 208610, 281170, 312915, 421755, 625830, 646691, 843510, 1293382, 1940073, 3233455, 3880146, 6466910, 9700365, 19400730]

約数ペア:

[(1, 19400730), (2, 9700365), (3, 6466910), (5, 3880146), (6, 3233455), (10, 1940073), (15, 1293382), (23, 843510), (30, 646691), (31, 625830), (46, 421755), (62, 312915), (69, 281170), (93, 208610), (115, 168702), (138, 140585), (155, 125166), (186, 104305), (230, 84351), (310, 62583), (345, 56234), (465, 41722), (690, 28117), (713, 27210), (907, 21390), (930, 20861), (1426, 13605), (1814, 10695), (2139, 9070), (2721, 7130), (3565, 5442), (4278, 4535)]