128512980

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{853}}^1$

素因数の和:908

約数の個数: 144

約数和(自身を含む): 417790464

約数和(自身を除く): 289277484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 124, 135, 155, 162, 180, 186, 243, 270, 279, 310, 324, 372, 405, 465, 486, 540, 558, 620, 810, 837, 853, 930, 972, 1116, 1215, 1395, 1620, 1674, 1706, 1860, 2430, 2511, 2559, 2790, 3348, 3412, 4185, 4265, 4860, 5022, 5118, 5580, 7533, 7677, 8370, 8530, 10044, 10236, 12555, 12795, 15066, 15354, 16740, 17060, 23031, 25110, 25590, 26443, 30132, 30708, 37665, 38385, 46062, 50220, 51180, 52886, 69093, 75330, 76770, 79329, 92124, 105772, 115155, 132215, 138186, 150660, 153540, 158658, 207279, 230310, 237987, 264430, 276372, 317316, 345465, 396645, 414558, 460620, 475974, 528860, 690930, 713961, 793290, 829116, 951948, 1036395, 1189935, 1381860, 1427922, 1586580, 2072790, 2141883, 2379870, 2855844, 3569805, 4145580, 4283766, 4759740, 6425649, 7139610, 8567532, 10709415, 12851298, 14279220, 21418830, 25702596, 32128245, 42837660, 64256490, 128512980]

約数ペア:

[(1, 128512980), (2, 64256490), (3, 42837660), (4, 32128245), (5, 25702596), (6, 21418830), (9, 14279220), (10, 12851298), (12, 10709415), (15, 8567532), (18, 7139610), (20, 6425649), (27, 4759740), (30, 4283766), (31, 4145580), (36, 3569805), (45, 2855844), (54, 2379870), (60, 2141883), (62, 2072790), (81, 1586580), (90, 1427922), (93, 1381860), (108, 1189935), (124, 1036395), (135, 951948), (155, 829116), (162, 793290), (180, 713961), (186, 690930), (243, 528860), (270, 475974), (279, 460620), (310, 414558), (324, 396645), (372, 345465), (405, 317316), (465, 276372), (486, 264430), (540, 237987), (558, 230310), (620, 207279), (810, 158658), (837, 153540), (853, 150660), (930, 138186), (972, 132215), (1116, 115155), (1215, 105772), (1395, 92124), (1620, 79329), (1674, 76770), (1706, 75330), (1860, 69093), (2430, 52886), (2511, 51180), (2559, 50220), (2790, 46062), (3348, 38385), (3412, 37665), (4185, 30708), (4265, 30132), (4860, 26443), (5022, 25590), (5118, 25110), (5580, 23031), (7533, 17060), (7677, 16740), (8370, 15354), (8530, 15066), (10044, 12795), (10236, 12555)]