23131980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:261

約数の個数: 120

約数和(自身を含む): 73790640

約数和(自身を除く): 50658660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 109, 131, 135, 162, 180, 218, 262, 270, 324, 327, 393, 405, 436, 524, 540, 545, 654, 655, 786, 810, 981, 1090, 1179, 1308, 1310, 1572, 1620, 1635, 1962, 1965, 2180, 2358, 2620, 2943, 3270, 3537, 3924, 3930, 4716, 4905, 5886, 5895, 6540, 7074, 7860, 8829, 9810, 10611, 11772, 11790, 14148, 14279, 14715, 17658, 17685, 19620, 21222, 23580, 28558, 29430, 35316, 35370, 42444, 42837, 44145, 53055, 57116, 58860, 70740, 71395, 85674, 88290, 106110, 128511, 142790, 171348, 176580, 212220, 214185, 257022, 285580, 385533, 428370, 514044, 642555, 771066, 856740, 1156599, 1285110, 1542132, 1927665, 2313198, 2570220, 3855330, 4626396, 5782995, 7710660, 11565990, 23131980]

約数ペア:

[(1, 23131980), (2, 11565990), (3, 7710660), (4, 5782995), (5, 4626396), (6, 3855330), (9, 2570220), (10, 2313198), (12, 1927665), (15, 1542132), (18, 1285110), (20, 1156599), (27, 856740), (30, 771066), (36, 642555), (45, 514044), (54, 428370), (60, 385533), (81, 285580), (90, 257022), (108, 214185), (109, 212220), (131, 176580), (135, 171348), (162, 142790), (180, 128511), (218, 106110), (262, 88290), (270, 85674), (324, 71395), (327, 70740), (393, 58860), (405, 57116), (436, 53055), (524, 44145), (540, 42837), (545, 42444), (654, 35370), (655, 35316), (786, 29430), (810, 28558), (981, 23580), (1090, 21222), (1179, 19620), (1308, 17685), (1310, 17658), (1572, 14715), (1620, 14279), (1635, 14148), (1962, 11790), (1965, 11772), (2180, 10611), (2358, 9810), (2620, 8829), (2943, 7860), (3270, 7074), (3537, 6540), (3924, 5895), (3930, 5886), (4716, 4905)]