2540140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 5854464

約数和(自身を除く): 3314324

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 241, 310, 340, 482, 527, 620, 964, 1054, 1205, 2108, 2410, 2635, 4097, 4820, 5270, 7471, 8194, 10540, 14942, 16388, 20485, 29884, 37355, 40970, 74710, 81940, 127007, 149420, 254014, 508028, 635035, 1270070, 2540140]

約数ペア:

[(1, 2540140), (2, 1270070), (4, 635035), (5, 508028), (10, 254014), (17, 149420), (20, 127007), (31, 81940), (34, 74710), (62, 40970), (68, 37355), (85, 29884), (124, 20485), (155, 16388), (170, 14942), (241, 10540), (310, 8194), (340, 7471), (482, 5270), (527, 4820), (620, 4097), (964, 2635), (1054, 2410), (1205, 2108)]