28040904

素因数分解:

$2^3\times 3^4\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:524

約数の個数: 80

約数和(自身を含む): 79460700

約数和(自身を除く): 51419796

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 109, 162, 216, 218, 324, 327, 397, 436, 648, 654, 794, 872, 981, 1191, 1308, 1588, 1962, 2382, 2616, 2943, 3176, 3573, 3924, 4764, 5886, 7146, 7848, 8829, 9528, 10719, 11772, 14292, 17658, 21438, 23544, 28584, 32157, 35316, 42876, 43273, 64314, 70632, 85752, 86546, 128628, 129819, 173092, 257256, 259638, 346184, 389457, 519276, 778914, 1038552, 1168371, 1557828, 2336742, 3115656, 3505113, 4673484, 7010226, 9346968, 14020452, 28040904]

約数ペア:

[(1, 28040904), (2, 14020452), (3, 9346968), (4, 7010226), (6, 4673484), (8, 3505113), (9, 3115656), (12, 2336742), (18, 1557828), (24, 1168371), (27, 1038552), (36, 778914), (54, 519276), (72, 389457), (81, 346184), (108, 259638), (109, 257256), (162, 173092), (216, 129819), (218, 128628), (324, 86546), (327, 85752), (397, 70632), (436, 64314), (648, 43273), (654, 42876), (794, 35316), (872, 32157), (981, 28584), (1191, 23544), (1308, 21438), (1588, 17658), (1962, 14292), (2382, 11772), (2616, 10719), (2943, 9528), (3176, 8829), (3573, 7848), (3924, 7146), (4764, 5886)]