28731105

素因数分解:

$3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:157

約数の個数: 96

約数和(自身を含む): 59439744

約数和(自身を除く): 30708639

約数列:

[1, 3, 5, 9, 13, 15, 17, 27, 39, 45, 51, 65, 81, 85, 107, 117, 135, 153, 195, 221, 243, 255, 321, 351, 405, 459, 535, 585, 663, 765, 963, 1053, 1105, 1215, 1377, 1391, 1605, 1755, 1819, 1989, 2295, 2889, 3159, 3315, 4131, 4173, 4815, 5265, 5457, 5967, 6885, 6955, 8667, 9095, 9945, 12519, 14445, 15795, 16371, 17901, 20655, 20865, 23647, 26001, 27285, 29835, 37557, 43335, 49113, 53703, 62595, 70941, 81855, 89505, 112671, 118235, 130005, 147339, 187785, 212823, 245565, 268515, 338013, 354705, 442017, 563355, 638469, 736695, 1064115, 1690065, 1915407, 2210085, 3192345, 5746221, 9577035, 28731105]

約数ペア:

[(1, 28731105), (3, 9577035), (5, 5746221), (9, 3192345), (13, 2210085), (15, 1915407), (17, 1690065), (27, 1064115), (39, 736695), (45, 638469), (51, 563355), (65, 442017), (81, 354705), (85, 338013), (107, 268515), (117, 245565), (135, 212823), (153, 187785), (195, 147339), (221, 130005), (243, 118235), (255, 112671), (321, 89505), (351, 81855), (405, 70941), (459, 62595), (535, 53703), (585, 49113), (663, 43335), (765, 37557), (963, 29835), (1053, 27285), (1105, 26001), (1215, 23647), (1377, 20865), (1391, 20655), (1605, 17901), (1755, 16371), (1819, 15795), (1989, 14445), (2295, 12519), (2889, 9945), (3159, 9095), (3315, 8667), (4131, 6955), (4173, 6885), (4815, 5967), (5265, 5457)]