13280120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1103}}^1$

素因数の和:1164

約数の個数: 64

約数和(自身を含む): 34974720

約数和(自身を除く): 21694600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1103, 1204, 1505, 1720, 2206, 2408, 3010, 4412, 5515, 6020, 7721, 8824, 11030, 12040, 15442, 22060, 30884, 38605, 44120, 47429, 61768, 77210, 94858, 154420, 189716, 237145, 308840, 332003, 379432, 474290, 664006, 948580, 1328012, 1660015, 1897160, 2656024, 3320030, 6640060, 13280120]

約数ペア:

[(1, 13280120), (2, 6640060), (4, 3320030), (5, 2656024), (7, 1897160), (8, 1660015), (10, 1328012), (14, 948580), (20, 664006), (28, 474290), (35, 379432), (40, 332003), (43, 308840), (56, 237145), (70, 189716), (86, 154420), (140, 94858), (172, 77210), (215, 61768), (280, 47429), (301, 44120), (344, 38605), (430, 30884), (602, 22060), (860, 15442), (1103, 12040), (1204, 11030), (1505, 8824), (1720, 7721), (2206, 6020), (2408, 5515), (3010, 4412)]