28311855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 54286848

約数和(自身を除く): 25974993

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 67, 143, 165, 195, 197, 201, 335, 429, 591, 715, 737, 871, 985, 1005, 2145, 2167, 2211, 2561, 2613, 2955, 3685, 4355, 6501, 7683, 9581, 10835, 11055, 12805, 13065, 13199, 28171, 28743, 32505, 38415, 39597, 47905, 65995, 84513, 140855, 143715, 145189, 171587, 197985, 422565, 435567, 514761, 725945, 857935, 1887457, 2177835, 2573805, 5662371, 9437285, 28311855]

約数ペア:

[(1, 28311855), (3, 9437285), (5, 5662371), (11, 2573805), (13, 2177835), (15, 1887457), (33, 857935), (39, 725945), (55, 514761), (65, 435567), (67, 422565), (143, 197985), (165, 171587), (195, 145189), (197, 143715), (201, 140855), (335, 84513), (429, 65995), (591, 47905), (715, 39597), (737, 38415), (871, 32505), (985, 28743), (1005, 28171), (2145, 13199), (2167, 13065), (2211, 12805), (2561, 11055), (2613, 10835), (2955, 9581), (3685, 7683), (4355, 6501)]