19799928

素因数分解:

$2^3\times 3^2\times {\mathrm{59}}^2\times {\mathrm{79}}^1$

素因数の和:209

約数の個数: 72

約数和(自身を含む): 55239600

約数和(自身を除く): 35439672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 59, 72, 79, 118, 158, 177, 236, 237, 316, 354, 472, 474, 531, 632, 708, 711, 948, 1062, 1416, 1422, 1896, 2124, 2844, 3481, 4248, 4661, 5688, 6962, 9322, 10443, 13924, 13983, 18644, 20886, 27848, 27966, 31329, 37288, 41772, 41949, 55932, 62658, 83544, 83898, 111864, 125316, 167796, 250632, 274999, 335592, 549998, 824997, 1099996, 1649994, 2199992, 2474991, 3299988, 4949982, 6599976, 9899964, 19799928]

約数ペア:

[(1, 19799928), (2, 9899964), (3, 6599976), (4, 4949982), (6, 3299988), (8, 2474991), (9, 2199992), (12, 1649994), (18, 1099996), (24, 824997), (36, 549998), (59, 335592), (72, 274999), (79, 250632), (118, 167796), (158, 125316), (177, 111864), (236, 83898), (237, 83544), (316, 62658), (354, 55932), (472, 41949), (474, 41772), (531, 37288), (632, 31329), (708, 27966), (711, 27848), (948, 20886), (1062, 18644), (1416, 13983), (1422, 13924), (1896, 10443), (2124, 9322), (2844, 6962), (3481, 5688), (4248, 4661)]