28943305

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 9210935

約数列:

[1, 5, 29, 31, 47, 137, 145, 155, 235, 685, 899, 1363, 1457, 3973, 4247, 4495, 6439, 6815, 7285, 19865, 21235, 32195, 42253, 123163, 186731, 199609, 211265, 615815, 933655, 998045, 5788661, 28943305]

約数ペア:

[(1, 28943305), (5, 5788661), (29, 998045), (31, 933655), (47, 615815), (137, 211265), (145, 199609), (155, 186731), (235, 123163), (685, 42253), (899, 32195), (1363, 21235), (1457, 19865), (3973, 7285), (4247, 6815), (4495, 6439)]