82561280

素因数分解:

$2^8\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1217}}^1$

素因数の和:1291

約数の個数: 72

約数和(自身を含む): 201656952

約数和(自身を除く): 119095672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 256, 265, 320, 424, 530, 640, 848, 1060, 1217, 1280, 1696, 2120, 2434, 3392, 4240, 4868, 6085, 6784, 8480, 9736, 12170, 13568, 16960, 19472, 24340, 33920, 38944, 48680, 64501, 67840, 77888, 97360, 129002, 155776, 194720, 258004, 311552, 322505, 389440, 516008, 645010, 778880, 1032016, 1290020, 1557760, 2064032, 2580040, 4128064, 5160080, 8256128, 10320160, 16512256, 20640320, 41280640, 82561280]

約数ペア:

[(1, 82561280), (2, 41280640), (4, 20640320), (5, 16512256), (8, 10320160), (10, 8256128), (16, 5160080), (20, 4128064), (32, 2580040), (40, 2064032), (53, 1557760), (64, 1290020), (80, 1032016), (106, 778880), (128, 645010), (160, 516008), (212, 389440), (256, 322505), (265, 311552), (320, 258004), (424, 194720), (530, 155776), (640, 129002), (848, 97360), (1060, 77888), (1217, 67840), (1280, 64501), (1696, 48680), (2120, 38944), (2434, 33920), (3392, 24340), (4240, 19472), (4868, 16960), (6085, 13568), (6784, 12170), (8480, 9736)]