254839780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{653}}^1$

素因数の和:773

約数の個数: 96

約数和(自身を含む): 615283200

約数和(自身を除く): 360443420

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 79, 95, 130, 158, 190, 247, 260, 316, 380, 395, 494, 653, 790, 988, 1027, 1235, 1306, 1501, 1580, 2054, 2470, 2612, 3002, 3265, 4108, 4940, 5135, 6004, 6530, 7505, 8489, 10270, 12407, 13060, 15010, 16978, 19513, 20540, 24814, 30020, 33956, 39026, 42445, 49628, 51587, 62035, 78052, 84890, 97565, 103174, 124070, 161291, 169780, 195130, 206348, 248140, 257935, 322582, 390260, 515870, 645164, 670631, 806455, 980153, 1031740, 1341262, 1612910, 1960306, 2682524, 3225820, 3353155, 3920612, 4900765, 6706310, 9801530, 12741989, 13412620, 19603060, 25483978, 50967956, 63709945, 127419890, 254839780]

約数ペア:

[(1, 254839780), (2, 127419890), (4, 63709945), (5, 50967956), (10, 25483978), (13, 19603060), (19, 13412620), (20, 12741989), (26, 9801530), (38, 6706310), (52, 4900765), (65, 3920612), (76, 3353155), (79, 3225820), (95, 2682524), (130, 1960306), (158, 1612910), (190, 1341262), (247, 1031740), (260, 980153), (316, 806455), (380, 670631), (395, 645164), (494, 515870), (653, 390260), (790, 322582), (988, 257935), (1027, 248140), (1235, 206348), (1306, 195130), (1501, 169780), (1580, 161291), (2054, 124070), (2470, 103174), (2612, 97565), (3002, 84890), (3265, 78052), (4108, 62035), (4940, 51587), (5135, 49628), (6004, 42445), (6530, 39026), (7505, 33956), (8489, 30020), (10270, 24814), (12407, 20540), (13060, 19513), (15010, 16978)]