78261820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6143}}^1$

素因数の和:6179

約数の個数: 72

約数和(自身を含む): 205922304

約数和(自身を除く): 127660484

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6143, 6370, 12286, 12740, 24572, 30715, 43001, 61430, 79859, 86002, 122860, 159718, 172004, 215005, 301007, 319436, 399295, 430010, 559013, 602014, 798590, 860020, 1118026, 1204028, 1505035, 1597180, 2236052, 2795065, 3010070, 3913091, 5590130, 6020140, 7826182, 11180260, 15652364, 19565455, 39130910, 78261820]

約数ペア:

[(1, 78261820), (2, 39130910), (4, 19565455), (5, 15652364), (7, 11180260), (10, 7826182), (13, 6020140), (14, 5590130), (20, 3913091), (26, 3010070), (28, 2795065), (35, 2236052), (49, 1597180), (52, 1505035), (65, 1204028), (70, 1118026), (91, 860020), (98, 798590), (130, 602014), (140, 559013), (182, 430010), (196, 399295), (245, 319436), (260, 301007), (364, 215005), (455, 172004), (490, 159718), (637, 122860), (910, 86002), (980, 79859), (1274, 61430), (1820, 43001), (2548, 30715), (3185, 24572), (6143, 12740), (6370, 12286)]