18890475

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{233}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 33426432

約数和(自身を除く): 14535957

約数列:

[1, 3, 5, 15, 23, 25, 47, 69, 75, 115, 141, 233, 235, 345, 575, 699, 705, 1081, 1165, 1175, 1725, 3243, 3495, 3525, 5359, 5405, 5825, 10951, 16077, 16215, 17475, 26795, 27025, 32853, 54755, 80385, 81075, 133975, 164265, 251873, 273775, 401925, 755619, 821325, 1259365, 3778095, 6296825, 18890475]

約数ペア:

[(1, 18890475), (3, 6296825), (5, 3778095), (15, 1259365), (23, 821325), (25, 755619), (47, 401925), (69, 273775), (75, 251873), (115, 164265), (141, 133975), (233, 81075), (235, 80385), (345, 54755), (575, 32853), (699, 27025), (705, 26795), (1081, 17475), (1165, 16215), (1175, 16077), (1725, 10951), (3243, 5825), (3495, 5405), (3525, 5359)]