205561440

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{20393}}^1$

素因数の和:20421

約数の個数: 144

約数和(自身を含む): 801728928

約数和(自身を除く): 596167488

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 20393, 40786, 61179, 81572, 101965, 122358, 142751, 163144, 183537, 203930, 244716, 285502, 305895, 326288, 367074, 407860, 428253, 489432, 571004, 611790, 652576, 713755, 734148, 815720, 856506, 917685, 978864, 1142008, 1223580, 1284759, 1427510, 1468296, 1631440, 1713012, 1835370, 1957728, 2141265, 2284016, 2447160, 2569518, 2855020, 2936592, 3262880, 3426024, 3670740, 4282530, 4568032, 4894320, 5139036, 5710040, 5873184, 6423795, 6852048, 7341480, 8565060, 9788640, 10278072, 11420080, 12847590, 13704096, 14682960, 17130120, 20556144, 22840160, 25695180, 29365920, 34260240, 41112288, 51390360, 68520480, 102780720, 205561440]

約数ペア:

[(1, 205561440), (2, 102780720), (3, 68520480), (4, 51390360), (5, 41112288), (6, 34260240), (7, 29365920), (8, 25695180), (9, 22840160), (10, 20556144), (12, 17130120), (14, 14682960), (15, 13704096), (16, 12847590), (18, 11420080), (20, 10278072), (21, 9788640), (24, 8565060), (28, 7341480), (30, 6852048), (32, 6423795), (35, 5873184), (36, 5710040), (40, 5139036), (42, 4894320), (45, 4568032), (48, 4282530), (56, 3670740), (60, 3426024), (63, 3262880), (70, 2936592), (72, 2855020), (80, 2569518), (84, 2447160), (90, 2284016), (96, 2141265), (105, 1957728), (112, 1835370), (120, 1713012), (126, 1631440), (140, 1468296), (144, 1427510), (160, 1284759), (168, 1223580), (180, 1142008), (210, 978864), (224, 917685), (240, 856506), (252, 815720), (280, 734148), (288, 713755), (315, 652576), (336, 611790), (360, 571004), (420, 489432), (480, 428253), (504, 407860), (560, 367074), (630, 326288), (672, 305895), (720, 285502), (840, 244716), (1008, 203930), (1120, 183537), (1260, 163144), (1440, 142751), (1680, 122358), (2016, 101965), (2520, 81572), (3360, 61179), (5040, 40786), (10080, 20393)]