28738545

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:230

約数の個数: 64

約数和(自身を含む): 53913600

約数和(自身を除く): 25175055

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 89, 95, 103, 165, 209, 267, 285, 309, 445, 515, 627, 979, 1045, 1133, 1335, 1545, 1691, 1957, 2937, 3135, 3399, 4895, 5073, 5665, 5871, 8455, 9167, 9785, 14685, 16995, 18601, 21527, 25365, 27501, 29355, 45835, 55803, 64581, 93005, 100837, 107635, 137505, 174173, 279015, 302511, 322905, 504185, 522519, 870865, 1512555, 1915903, 2612595, 5747709, 9579515, 28738545]

約数ペア:

[(1, 28738545), (3, 9579515), (5, 5747709), (11, 2612595), (15, 1915903), (19, 1512555), (33, 870865), (55, 522519), (57, 504185), (89, 322905), (95, 302511), (103, 279015), (165, 174173), (209, 137505), (267, 107635), (285, 100837), (309, 93005), (445, 64581), (515, 55803), (627, 45835), (979, 29355), (1045, 27501), (1133, 25365), (1335, 21527), (1545, 18601), (1691, 16995), (1957, 14685), (2937, 9785), (3135, 9167), (3399, 8455), (4895, 5871), (5073, 5665)]