28782796

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:227

約数の個数: 72

約数和(自身を含む): 63201600

約数和(自身を除く): 34418804

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 59, 76, 98, 118, 131, 133, 196, 236, 262, 266, 413, 524, 532, 826, 917, 931, 1121, 1652, 1834, 1862, 2242, 2489, 2891, 3668, 3724, 4484, 4978, 5782, 6419, 7729, 7847, 9956, 11564, 12838, 15458, 15694, 17423, 25676, 30916, 31388, 34846, 54103, 54929, 69692, 108206, 109858, 121961, 146851, 216412, 219716, 243922, 293702, 378721, 487844, 587404, 757442, 1027957, 1514884, 2055914, 4111828, 7195699, 14391398, 28782796]

約数ペア:

[(1, 28782796), (2, 14391398), (4, 7195699), (7, 4111828), (14, 2055914), (19, 1514884), (28, 1027957), (38, 757442), (49, 587404), (59, 487844), (76, 378721), (98, 293702), (118, 243922), (131, 219716), (133, 216412), (196, 146851), (236, 121961), (262, 109858), (266, 108206), (413, 69692), (524, 54929), (532, 54103), (826, 34846), (917, 31388), (931, 30916), (1121, 25676), (1652, 17423), (1834, 15694), (1862, 15458), (2242, 12838), (2489, 11564), (2891, 9956), (3668, 7847), (3724, 7729), (4484, 6419), (4978, 5782)]