257178480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2659}}^1$

素因数の和:2719

約数の個数: 160

約数和(自身を含む): 886609920

約数和(自身を除く): 629431440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 31, 39, 40, 48, 52, 60, 62, 65, 78, 80, 93, 104, 120, 124, 130, 155, 156, 186, 195, 208, 240, 248, 260, 310, 312, 372, 390, 403, 465, 496, 520, 620, 624, 744, 780, 806, 930, 1040, 1209, 1240, 1488, 1560, 1612, 1860, 2015, 2418, 2480, 2659, 3120, 3224, 3720, 4030, 4836, 5318, 6045, 6448, 7440, 7977, 8060, 9672, 10636, 12090, 13295, 15954, 16120, 19344, 21272, 24180, 26590, 31908, 32240, 34567, 39885, 42544, 48360, 53180, 63816, 69134, 79770, 82429, 96720, 103701, 106360, 127632, 138268, 159540, 164858, 172835, 207402, 212720, 247287, 276536, 319080, 329716, 345670, 412145, 414804, 494574, 518505, 553072, 638160, 659432, 691340, 824290, 829608, 989148, 1037010, 1071577, 1236435, 1318864, 1382680, 1648580, 1659216, 1978296, 2074020, 2143154, 2472870, 2765360, 3214731, 3297160, 3956592, 4148040, 4286308, 4945740, 5357885, 6429462, 6594320, 8296080, 8572616, 9891480, 10715770, 12858924, 16073655, 17145232, 19782960, 21431540, 25717848, 32147310, 42863080, 51435696, 64294620, 85726160, 128589240, 257178480]

約数ペア:

[(1, 257178480), (2, 128589240), (3, 85726160), (4, 64294620), (5, 51435696), (6, 42863080), (8, 32147310), (10, 25717848), (12, 21431540), (13, 19782960), (15, 17145232), (16, 16073655), (20, 12858924), (24, 10715770), (26, 9891480), (30, 8572616), (31, 8296080), (39, 6594320), (40, 6429462), (48, 5357885), (52, 4945740), (60, 4286308), (62, 4148040), (65, 3956592), (78, 3297160), (80, 3214731), (93, 2765360), (104, 2472870), (120, 2143154), (124, 2074020), (130, 1978296), (155, 1659216), (156, 1648580), (186, 1382680), (195, 1318864), (208, 1236435), (240, 1071577), (248, 1037010), (260, 989148), (310, 829608), (312, 824290), (372, 691340), (390, 659432), (403, 638160), (465, 553072), (496, 518505), (520, 494574), (620, 414804), (624, 412145), (744, 345670), (780, 329716), (806, 319080), (930, 276536), (1040, 247287), (1209, 212720), (1240, 207402), (1488, 172835), (1560, 164858), (1612, 159540), (1860, 138268), (2015, 127632), (2418, 106360), (2480, 103701), (2659, 96720), (3120, 82429), (3224, 79770), (3720, 69134), (4030, 63816), (4836, 53180), (5318, 48360), (6045, 42544), (6448, 39885), (7440, 34567), (7977, 32240), (8060, 31908), (9672, 26590), (10636, 24180), (12090, 21272), (13295, 19344), (15954, 16120)]