20123781375

素因数分解:

$3^1\times 5^3\times {\mathrm{1171}}^1\times {\mathrm{45827}}^1$

素因数の和:47016

約数の個数: 32

約数和(自身を含む): 33515299584

約数和(自身を除く): 13391518209

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 1171, 3513, 5855, 17565, 29275, 45827, 87825, 137481, 146375, 229135, 439125, 687405, 1145675, 3437025, 5728375, 17185125, 53663417, 160990251, 268317085, 804951255, 1341585425, 4024756275, 6707927125, 20123781375]

約数ペア:

[(1, 20123781375), (3, 6707927125), (5, 4024756275), (15, 1341585425), (25, 804951255), (75, 268317085), (125, 160990251), (375, 53663417), (1171, 17185125), (3513, 5728375), (5855, 3437025), (17565, 1145675), (29275, 687405), (45827, 439125), (87825, 229135), (137481, 146375)]