161661285

素因数分解:

$3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1$

素因数の和:435

約数の個数: 64

約数和(自身を含む): 297480960

約数和(自身を除く): 135819675

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 67, 135, 183, 201, 293, 305, 335, 549, 603, 879, 915, 1005, 1465, 1647, 1809, 2637, 2745, 3015, 4087, 4395, 7911, 8235, 9045, 12261, 13185, 17873, 19631, 20435, 36783, 39555, 53619, 58893, 61305, 89365, 98155, 110349, 160857, 176679, 183915, 268095, 294465, 482571, 530037, 551745, 804285, 883395, 1197491, 2412855, 2650185, 3592473, 5987455, 10777419, 17962365, 32332257, 53887095, 161661285]

約数ペア:

[(1, 161661285), (3, 53887095), (5, 32332257), (9, 17962365), (15, 10777419), (27, 5987455), (45, 3592473), (61, 2650185), (67, 2412855), (135, 1197491), (183, 883395), (201, 804285), (293, 551745), (305, 530037), (335, 482571), (549, 294465), (603, 268095), (879, 183915), (915, 176679), (1005, 160857), (1465, 110349), (1647, 98155), (1809, 89365), (2637, 61305), (2745, 58893), (3015, 53619), (4087, 39555), (4395, 36783), (7911, 20435), (8235, 19631), (9045, 17873), (12261, 13185)]