17939675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{191}}^1$

素因数の和:248

約数の個数: 36

約数和(自身を含む): 25581696

約数和(自身を除く): 7642021

約数列:

[1, 5, 13, 17, 25, 65, 85, 191, 221, 289, 325, 425, 955, 1105, 1445, 2483, 3247, 3757, 4775, 5525, 7225, 12415, 16235, 18785, 42211, 55199, 62075, 81175, 93925, 211055, 275995, 717587, 1055275, 1379975, 3587935, 17939675]

約数ペア:

[(1, 17939675), (5, 3587935), (13, 1379975), (17, 1055275), (25, 717587), (65, 275995), (85, 211055), (191, 93925), (221, 81175), (289, 62075), (325, 55199), (425, 42211), (955, 18785), (1105, 16235), (1445, 12415), (2483, 7225), (3247, 5525), (3757, 4775)]