25665640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:683

約数の個数: 128

約数和(自身を含む): 77656320

約数和(自身を除く): 51990680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 641, 715, 728, 770, 910, 1001, 1144, 1282, 1430, 1540, 1820, 2002, 2564, 2860, 3080, 3205, 3640, 4004, 4487, 5005, 5128, 5720, 6410, 7051, 8008, 8333, 8974, 10010, 12820, 14102, 16666, 17948, 20020, 22435, 25640, 28204, 33332, 35255, 35896, 40040, 41665, 44870, 49357, 56408, 58331, 66664, 70510, 83330, 89740, 91663, 98714, 116662, 141020, 166660, 179480, 183326, 197428, 233324, 246785, 282040, 291655, 333320, 366652, 394856, 458315, 466648, 493570, 583310, 641641, 733304, 916630, 987140, 1166620, 1283282, 1833260, 1974280, 2333240, 2566564, 3208205, 3666520, 5133128, 6416410, 12832820, 25665640]

約数ペア:

[(1, 25665640), (2, 12832820), (4, 6416410), (5, 5133128), (7, 3666520), (8, 3208205), (10, 2566564), (11, 2333240), (13, 1974280), (14, 1833260), (20, 1283282), (22, 1166620), (26, 987140), (28, 916630), (35, 733304), (40, 641641), (44, 583310), (52, 493570), (55, 466648), (56, 458315), (65, 394856), (70, 366652), (77, 333320), (88, 291655), (91, 282040), (104, 246785), (110, 233324), (130, 197428), (140, 183326), (143, 179480), (154, 166660), (182, 141020), (220, 116662), (260, 98714), (280, 91663), (286, 89740), (308, 83330), (364, 70510), (385, 66664), (440, 58331), (455, 56408), (520, 49357), (572, 44870), (616, 41665), (641, 40040), (715, 35896), (728, 35255), (770, 33332), (910, 28204), (1001, 25640), (1144, 22435), (1282, 20020), (1430, 17948), (1540, 16666), (1820, 14102), (2002, 12820), (2564, 10010), (2860, 8974), (3080, 8333), (3205, 8008), (3640, 7051), (4004, 6410), (4487, 5720), (5005, 5128)]