31282580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{233}}^1$

素因数の和:393

約数の個数: 72

約数和(自身を含む): 77307048

約数和(自身を除く): 46024468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 137, 140, 196, 233, 245, 274, 466, 490, 548, 685, 932, 959, 980, 1165, 1370, 1631, 1918, 2330, 2740, 3262, 3836, 4660, 4795, 6524, 6713, 8155, 9590, 11417, 13426, 16310, 19180, 22834, 26852, 31921, 32620, 33565, 45668, 57085, 63842, 67130, 114170, 127684, 134260, 159605, 223447, 228340, 319210, 446894, 638420, 893788, 1117235, 1564129, 2234470, 3128258, 4468940, 6256516, 7820645, 15641290, 31282580]

約数ペア:

[(1, 31282580), (2, 15641290), (4, 7820645), (5, 6256516), (7, 4468940), (10, 3128258), (14, 2234470), (20, 1564129), (28, 1117235), (35, 893788), (49, 638420), (70, 446894), (98, 319210), (137, 228340), (140, 223447), (196, 159605), (233, 134260), (245, 127684), (274, 114170), (466, 67130), (490, 63842), (548, 57085), (685, 45668), (932, 33565), (959, 32620), (980, 31921), (1165, 26852), (1370, 22834), (1631, 19180), (1918, 16310), (2330, 13426), (2740, 11417), (3262, 9590), (3836, 8155), (4660, 6713), (4795, 6524)]