1325821640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7477}}^1$

素因数の和:7543

約数の個数: 128

約数和(自身を含む): 3618155520

約数和(自身を除く): 2292333880

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 88, 104, 110, 124, 130, 143, 155, 220, 248, 260, 286, 310, 341, 403, 440, 520, 572, 620, 682, 715, 806, 1144, 1240, 1364, 1430, 1612, 1705, 2015, 2728, 2860, 3224, 3410, 4030, 4433, 5720, 6820, 7477, 8060, 8866, 13640, 14954, 16120, 17732, 22165, 29908, 35464, 37385, 44330, 59816, 74770, 82247, 88660, 97201, 149540, 164494, 177320, 194402, 231787, 299080, 328988, 388804, 411235, 463574, 486005, 657976, 777608, 822470, 927148, 972010, 1069211, 1158935, 1644940, 1854296, 1944020, 2138422, 2317870, 2549657, 3013231, 3289880, 3888040, 4276844, 4635740, 5099314, 5346055, 6026462, 8553688, 9271480, 10198628, 10692110, 12052924, 12748285, 15066155, 20397256, 21384220, 24105848, 25496570, 30132310, 33145541, 42768440, 50993140, 60264620, 66291082, 101986280, 120529240, 132582164, 165727705, 265164328, 331455410, 662910820, 1325821640]

約数ペア:

[(1, 1325821640), (2, 662910820), (4, 331455410), (5, 265164328), (8, 165727705), (10, 132582164), (11, 120529240), (13, 101986280), (20, 66291082), (22, 60264620), (26, 50993140), (31, 42768440), (40, 33145541), (44, 30132310), (52, 25496570), (55, 24105848), (62, 21384220), (65, 20397256), (88, 15066155), (104, 12748285), (110, 12052924), (124, 10692110), (130, 10198628), (143, 9271480), (155, 8553688), (220, 6026462), (248, 5346055), (260, 5099314), (286, 4635740), (310, 4276844), (341, 3888040), (403, 3289880), (440, 3013231), (520, 2549657), (572, 2317870), (620, 2138422), (682, 1944020), (715, 1854296), (806, 1644940), (1144, 1158935), (1240, 1069211), (1364, 972010), (1430, 927148), (1612, 822470), (1705, 777608), (2015, 657976), (2728, 486005), (2860, 463574), (3224, 411235), (3410, 388804), (4030, 328988), (4433, 299080), (5720, 231787), (6820, 194402), (7477, 177320), (8060, 164494), (8866, 149540), (13640, 97201), (14954, 88660), (16120, 82247), (17732, 74770), (22165, 59816), (29908, 44330), (35464, 37385)]