256343220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{523}}^1$

素因数の和:934

約数の個数: 144

約数和(自身を含む): 892644480

約数和(自身を除く): 636301260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 389, 420, 523, 630, 778, 1046, 1167, 1260, 1556, 1569, 1945, 2092, 2334, 2615, 2723, 3138, 3501, 3661, 3890, 4668, 4707, 5230, 5446, 5835, 6276, 7002, 7322, 7780, 7845, 8169, 9414, 10460, 10892, 10983, 11670, 13615, 14004, 14644, 15690, 16338, 17505, 18305, 18828, 21966, 23340, 23535, 24507, 27230, 31380, 32676, 32949, 35010, 36610, 40845, 43932, 47070, 49014, 54460, 54915, 65898, 70020, 73220, 81690, 94140, 98028, 109830, 122535, 131796, 163380, 164745, 203447, 219660, 245070, 329490, 406894, 490140, 610341, 658980, 813788, 1017235, 1220682, 1424129, 1831023, 2034470, 2441364, 2848258, 3051705, 3662046, 4068940, 4272387, 5696516, 6103410, 7120645, 7324092, 8544774, 9155115, 12206820, 12817161, 14241290, 17089548, 18310230, 21361935, 25634322, 28482580, 36620460, 42723870, 51268644, 64085805, 85447740, 128171610, 256343220]

約数ペア:

[(1, 256343220), (2, 128171610), (3, 85447740), (4, 64085805), (5, 51268644), (6, 42723870), (7, 36620460), (9, 28482580), (10, 25634322), (12, 21361935), (14, 18310230), (15, 17089548), (18, 14241290), (20, 12817161), (21, 12206820), (28, 9155115), (30, 8544774), (35, 7324092), (36, 7120645), (42, 6103410), (45, 5696516), (60, 4272387), (63, 4068940), (70, 3662046), (84, 3051705), (90, 2848258), (105, 2441364), (126, 2034470), (140, 1831023), (180, 1424129), (210, 1220682), (252, 1017235), (315, 813788), (389, 658980), (420, 610341), (523, 490140), (630, 406894), (778, 329490), (1046, 245070), (1167, 219660), (1260, 203447), (1556, 164745), (1569, 163380), (1945, 131796), (2092, 122535), (2334, 109830), (2615, 98028), (2723, 94140), (3138, 81690), (3501, 73220), (3661, 70020), (3890, 65898), (4668, 54915), (4707, 54460), (5230, 49014), (5446, 47070), (5835, 43932), (6276, 40845), (7002, 36610), (7322, 35010), (7780, 32949), (7845, 32676), (8169, 31380), (9414, 27230), (10460, 24507), (10892, 23535), (10983, 23340), (11670, 21966), (13615, 18828), (14004, 18305), (14644, 17505), (15690, 16338)]