20842340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1039}}^1$

素因数の和:1124

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 26332060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 59, 68, 85, 118, 170, 236, 295, 340, 590, 1003, 1039, 1180, 2006, 2078, 4012, 4156, 5015, 5195, 10030, 10390, 17663, 20060, 20780, 35326, 61301, 70652, 88315, 122602, 176630, 245204, 306505, 353260, 613010, 1042117, 1226020, 2084234, 4168468, 5210585, 10421170, 20842340]

約数ペア:

[(1, 20842340), (2, 10421170), (4, 5210585), (5, 4168468), (10, 2084234), (17, 1226020), (20, 1042117), (34, 613010), (59, 353260), (68, 306505), (85, 245204), (118, 176630), (170, 122602), (236, 88315), (295, 70652), (340, 61301), (590, 35326), (1003, 20780), (1039, 20060), (1180, 17663), (2006, 10390), (2078, 10030), (4012, 5195), (4156, 5015)]