28914975

素因数分解:

$3^4\times 5^2\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:262

約数の個数: 60

約数和(自身を含む): 54464520

約数和(自身を除く): 25549545

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 109, 131, 135, 225, 327, 393, 405, 545, 655, 675, 981, 1179, 1635, 1965, 2025, 2725, 2943, 3275, 3537, 4905, 5895, 8175, 8829, 9825, 10611, 14279, 14715, 17685, 24525, 29475, 42837, 44145, 53055, 71395, 73575, 88425, 128511, 214185, 220725, 265275, 356975, 385533, 642555, 1070925, 1156599, 1927665, 3212775, 5782995, 9638325, 28914975]

約数ペア:

[(1, 28914975), (3, 9638325), (5, 5782995), (9, 3212775), (15, 1927665), (25, 1156599), (27, 1070925), (45, 642555), (75, 385533), (81, 356975), (109, 265275), (131, 220725), (135, 214185), (225, 128511), (327, 88425), (393, 73575), (405, 71395), (545, 53055), (655, 44145), (675, 42837), (981, 29475), (1179, 24525), (1635, 17685), (1965, 14715), (2025, 14279), (2725, 10611), (2943, 9825), (3275, 8829), (3537, 8175), (4905, 5895)]