257400640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{761}}^1$

素因数の和:936

約数の個数: 112

約数和(自身を含む): 706063104

約数和(自身を除く): 448662464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 151, 160, 224, 280, 302, 320, 448, 560, 604, 755, 761, 1057, 1120, 1208, 1510, 1522, 2114, 2240, 2416, 3020, 3044, 3805, 4228, 4832, 5285, 5327, 6040, 6088, 7610, 8456, 9664, 10570, 10654, 12080, 12176, 15220, 16912, 21140, 21308, 24160, 24352, 26635, 30440, 33824, 42280, 42616, 48320, 48704, 53270, 60880, 67648, 84560, 85232, 106540, 114911, 121760, 169120, 170464, 213080, 229822, 243520, 338240, 340928, 426160, 459644, 574555, 804377, 852320, 919288, 1149110, 1608754, 1704640, 1838576, 2298220, 3217508, 3677152, 4021885, 4596440, 6435016, 7354304, 8043770, 9192880, 12870032, 16087540, 18385760, 25740064, 32175080, 36771520, 51480128, 64350160, 128700320, 257400640]

約数ペア:

[(1, 257400640), (2, 128700320), (4, 64350160), (5, 51480128), (7, 36771520), (8, 32175080), (10, 25740064), (14, 18385760), (16, 16087540), (20, 12870032), (28, 9192880), (32, 8043770), (35, 7354304), (40, 6435016), (56, 4596440), (64, 4021885), (70, 3677152), (80, 3217508), (112, 2298220), (140, 1838576), (151, 1704640), (160, 1608754), (224, 1149110), (280, 919288), (302, 852320), (320, 804377), (448, 574555), (560, 459644), (604, 426160), (755, 340928), (761, 338240), (1057, 243520), (1120, 229822), (1208, 213080), (1510, 170464), (1522, 169120), (2114, 121760), (2240, 114911), (2416, 106540), (3020, 85232), (3044, 84560), (3805, 67648), (4228, 60880), (4832, 53270), (5285, 48704), (5327, 48320), (6040, 42616), (6088, 42280), (7610, 33824), (8456, 30440), (9664, 26635), (10570, 24352), (10654, 24160), (12080, 21308), (12176, 21140), (15220, 16912)]