28181268

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 74406696

約数和(自身を除く): 46225428

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 61, 82, 122, 123, 164, 183, 244, 246, 313, 366, 369, 492, 549, 626, 732, 738, 939, 1098, 1252, 1476, 1878, 2196, 2501, 2817, 3756, 5002, 5634, 7503, 10004, 11268, 12833, 15006, 19093, 22509, 25666, 30012, 38186, 38499, 45018, 51332, 57279, 76372, 76998, 90036, 114558, 115497, 153996, 171837, 229116, 230994, 343674, 461988, 687348, 782813, 1565626, 2348439, 3131252, 4696878, 7045317, 9393756, 14090634, 28181268]

約数ペア:

[(1, 28181268), (2, 14090634), (3, 9393756), (4, 7045317), (6, 4696878), (9, 3131252), (12, 2348439), (18, 1565626), (36, 782813), (41, 687348), (61, 461988), (82, 343674), (122, 230994), (123, 229116), (164, 171837), (183, 153996), (244, 115497), (246, 114558), (313, 90036), (366, 76998), (369, 76372), (492, 57279), (549, 51332), (626, 45018), (732, 38499), (738, 38186), (939, 30012), (1098, 25666), (1252, 22509), (1476, 19093), (1878, 15006), (2196, 12833), (2501, 11268), (2817, 10004), (3756, 7503), (5002, 5634)]