123515920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1447}}^1$

素因数の和:1568

約数の個数: 80

約数和(自身を含む): 316729728

約数和(自身を除く): 193213808

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 97, 110, 176, 194, 220, 388, 440, 485, 776, 880, 970, 1067, 1447, 1552, 1940, 2134, 2894, 3880, 4268, 5335, 5788, 7235, 7760, 8536, 10670, 11576, 14470, 15917, 17072, 21340, 23152, 28940, 31834, 42680, 57880, 63668, 79585, 85360, 115760, 127336, 140359, 159170, 254672, 280718, 318340, 561436, 636680, 701795, 1122872, 1273360, 1403590, 1543949, 2245744, 2807180, 3087898, 5614360, 6175796, 7719745, 11228720, 12351592, 15439490, 24703184, 30878980, 61757960, 123515920]

約数ペア:

[(1, 123515920), (2, 61757960), (4, 30878980), (5, 24703184), (8, 15439490), (10, 12351592), (11, 11228720), (16, 7719745), (20, 6175796), (22, 5614360), (40, 3087898), (44, 2807180), (55, 2245744), (80, 1543949), (88, 1403590), (97, 1273360), (110, 1122872), (176, 701795), (194, 636680), (220, 561436), (388, 318340), (440, 280718), (485, 254672), (776, 159170), (880, 140359), (970, 127336), (1067, 115760), (1447, 85360), (1552, 79585), (1940, 63668), (2134, 57880), (2894, 42680), (3880, 31834), (4268, 28940), (5335, 23152), (5788, 21340), (7235, 17072), (7760, 15917), (8536, 14470), (10670, 11576)]