17780980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 46835712

約数和(自身を除く): 29054732

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 31, 34, 35, 62, 68, 70, 85, 119, 124, 140, 155, 170, 217, 238, 241, 310, 340, 434, 476, 482, 527, 595, 620, 868, 964, 1054, 1085, 1190, 1205, 1687, 2108, 2170, 2380, 2410, 2635, 3374, 3689, 4097, 4340, 4820, 5270, 6748, 7378, 7471, 8194, 8435, 10540, 14756, 14942, 16388, 16870, 18445, 20485, 28679, 29884, 33740, 36890, 37355, 40970, 52297, 57358, 73780, 74710, 81940, 104594, 114716, 127007, 143395, 149420, 209188, 254014, 261485, 286790, 508028, 522970, 573580, 635035, 889049, 1045940, 1270070, 1778098, 2540140, 3556196, 4445245, 8890490, 17780980]

約数ペア:

[(1, 17780980), (2, 8890490), (4, 4445245), (5, 3556196), (7, 2540140), (10, 1778098), (14, 1270070), (17, 1045940), (20, 889049), (28, 635035), (31, 573580), (34, 522970), (35, 508028), (62, 286790), (68, 261485), (70, 254014), (85, 209188), (119, 149420), (124, 143395), (140, 127007), (155, 114716), (170, 104594), (217, 81940), (238, 74710), (241, 73780), (310, 57358), (340, 52297), (434, 40970), (476, 37355), (482, 36890), (527, 33740), (595, 29884), (620, 28679), (868, 20485), (964, 18445), (1054, 16870), (1085, 16388), (1190, 14942), (1205, 14756), (1687, 10540), (2108, 8435), (2170, 8194), (2380, 7471), (2410, 7378), (2635, 6748), (3374, 5270), (3689, 4820), (4097, 4340)]