20084960

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:328

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 35072800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 79, 80, 112, 140, 158, 160, 224, 227, 280, 316, 395, 454, 553, 560, 632, 790, 908, 1106, 1120, 1135, 1264, 1580, 1589, 1816, 2212, 2270, 2528, 2765, 3160, 3178, 3632, 4424, 4540, 5530, 6320, 6356, 7264, 7945, 8848, 9080, 11060, 12640, 12712, 15890, 17696, 17933, 18160, 22120, 25424, 31780, 35866, 36320, 44240, 50848, 63560, 71732, 88480, 89665, 125531, 127120, 143464, 179330, 251062, 254240, 286928, 358660, 502124, 573856, 627655, 717320, 1004248, 1255310, 1434640, 2008496, 2510620, 2869280, 4016992, 5021240, 10042480, 20084960]

約数ペア:

[(1, 20084960), (2, 10042480), (4, 5021240), (5, 4016992), (7, 2869280), (8, 2510620), (10, 2008496), (14, 1434640), (16, 1255310), (20, 1004248), (28, 717320), (32, 627655), (35, 573856), (40, 502124), (56, 358660), (70, 286928), (79, 254240), (80, 251062), (112, 179330), (140, 143464), (158, 127120), (160, 125531), (224, 89665), (227, 88480), (280, 71732), (316, 63560), (395, 50848), (454, 44240), (553, 36320), (560, 35866), (632, 31780), (790, 25424), (908, 22120), (1106, 18160), (1120, 17933), (1135, 17696), (1264, 15890), (1580, 12712), (1589, 12640), (1816, 11060), (2212, 9080), (2270, 8848), (2528, 7945), (2765, 7264), (3160, 6356), (3178, 6320), (3632, 5530), (4424, 4540)]