256366740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{26539}}^1$

素因数の和:26581

約数の個数: 96

約数和(自身を含む): 856074240

約数和(自身を除く): 599707500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 2415, 3220, 4830, 9660, 26539, 53078, 79617, 106156, 132695, 159234, 185773, 265390, 318468, 371546, 398085, 530780, 557319, 610397, 743092, 796170, 928865, 1114638, 1220794, 1592340, 1831191, 1857730, 2229276, 2441588, 2786595, 3051985, 3662382, 3715460, 4272779, 5573190, 6103970, 7324764, 8545558, 9155955, 11146380, 12207940, 12818337, 17091116, 18311910, 21363895, 25636674, 36623820, 42727790, 51273348, 64091685, 85455580, 128183370, 256366740]

約数ペア:

[(1, 256366740), (2, 128183370), (3, 85455580), (4, 64091685), (5, 51273348), (6, 42727790), (7, 36623820), (10, 25636674), (12, 21363895), (14, 18311910), (15, 17091116), (20, 12818337), (21, 12207940), (23, 11146380), (28, 9155955), (30, 8545558), (35, 7324764), (42, 6103970), (46, 5573190), (60, 4272779), (69, 3715460), (70, 3662382), (84, 3051985), (92, 2786595), (105, 2441588), (115, 2229276), (138, 1857730), (140, 1831191), (161, 1592340), (210, 1220794), (230, 1114638), (276, 928865), (322, 796170), (345, 743092), (420, 610397), (460, 557319), (483, 530780), (644, 398085), (690, 371546), (805, 318468), (966, 265390), (1380, 185773), (1610, 159234), (1932, 132695), (2415, 106156), (3220, 79617), (4830, 53078), (9660, 26539)]