18814940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{739}}^1$

素因数の和:834

約数の個数: 48

約数和(自身を含む): 42268800

約数和(自身を除く): 23453860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 670, 739, 1273, 1340, 1478, 2546, 2956, 3695, 5092, 6365, 7390, 12730, 14041, 14780, 25460, 28082, 49513, 56164, 70205, 99026, 140410, 198052, 247565, 280820, 495130, 940747, 990260, 1881494, 3762988, 4703735, 9407470, 18814940]

約数ペア:

[(1, 18814940), (2, 9407470), (4, 4703735), (5, 3762988), (10, 1881494), (19, 990260), (20, 940747), (38, 495130), (67, 280820), (76, 247565), (95, 198052), (134, 140410), (190, 99026), (268, 70205), (335, 56164), (380, 49513), (670, 28082), (739, 25460), (1273, 14780), (1340, 14041), (1478, 12730), (2546, 7390), (2956, 6365), (3695, 5092)]