7970140

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 17454528

約数和(自身を除く): 9484388

約数列:

[1, 2, 4, 5, 10, 20, 53, 73, 103, 106, 146, 206, 212, 265, 292, 365, 412, 515, 530, 730, 1030, 1060, 1460, 2060, 3869, 5459, 7519, 7738, 10918, 15038, 15476, 19345, 21836, 27295, 30076, 37595, 38690, 54590, 75190, 77380, 109180, 150380, 398507, 797014, 1594028, 1992535, 3985070, 7970140]

約数ペア:

[(1, 7970140), (2, 3985070), (4, 1992535), (5, 1594028), (10, 797014), (20, 398507), (53, 150380), (73, 109180), (103, 77380), (106, 75190), (146, 54590), (206, 38690), (212, 37595), (265, 30076), (292, 27295), (365, 21836), (412, 19345), (515, 15476), (530, 15038), (730, 10918), (1030, 7738), (1060, 7519), (1460, 5459), (2060, 3869)]