2009420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 4988928

約数和(自身を除く): 2979508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 463, 620, 868, 926, 1085, 1852, 2170, 2315, 3241, 4340, 4630, 6482, 9260, 12964, 14353, 16205, 28706, 32410, 57412, 64820, 71765, 100471, 143530, 200942, 287060, 401884, 502355, 1004710, 2009420]

約数ペア:

[(1, 2009420), (2, 1004710), (4, 502355), (5, 401884), (7, 287060), (10, 200942), (14, 143530), (20, 100471), (28, 71765), (31, 64820), (35, 57412), (62, 32410), (70, 28706), (124, 16205), (140, 14353), (155, 12964), (217, 9260), (310, 6482), (434, 4630), (463, 4340), (620, 3241), (868, 2315), (926, 2170), (1085, 1852)]