28985320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7963}}^1$

素因数の和:7994

約数の個数: 64

約数和(自身を含む): 80277120

約数和(自身を除く): 51291800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 7963, 15926, 31852, 39815, 55741, 63704, 79630, 103519, 111482, 159260, 207038, 222964, 278705, 318520, 414076, 445928, 517595, 557410, 724633, 828152, 1035190, 1114820, 1449266, 2070380, 2229640, 2898532, 3623165, 4140760, 5797064, 7246330, 14492660, 28985320]

約数ペア:

[(1, 28985320), (2, 14492660), (4, 7246330), (5, 5797064), (7, 4140760), (8, 3623165), (10, 2898532), (13, 2229640), (14, 2070380), (20, 1449266), (26, 1114820), (28, 1035190), (35, 828152), (40, 724633), (52, 557410), (56, 517595), (65, 445928), (70, 414076), (91, 318520), (104, 278705), (130, 222964), (140, 207038), (182, 159260), (260, 111482), (280, 103519), (364, 79630), (455, 63704), (520, 55741), (728, 39815), (910, 31852), (1820, 15926), (3640, 7963)]