20155503560

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1\times {\mathrm{28723}}^1$

素因数の和:29118

約数の個数: 64

約数和(自身を含む): 46346748480

約数和(自身を除く): 26191244920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 331, 424, 530, 662, 1060, 1324, 1655, 2120, 2648, 3310, 6620, 13240, 17543, 28723, 35086, 57446, 70172, 87715, 114892, 140344, 143615, 175430, 229784, 287230, 350860, 574460, 701720, 1148920, 1522319, 3044638, 6089276, 7611595, 9507313, 12178552, 15223190, 19014626, 30446380, 38029252, 47536565, 60892760, 76058504, 95073130, 190146260, 380292520, 503887589, 1007775178, 2015550356, 2519437945, 4031100712, 5038875890, 10077751780, 20155503560]

約数ペア:

[(1, 20155503560), (2, 10077751780), (4, 5038875890), (5, 4031100712), (8, 2519437945), (10, 2015550356), (20, 1007775178), (40, 503887589), (53, 380292520), (106, 190146260), (212, 95073130), (265, 76058504), (331, 60892760), (424, 47536565), (530, 38029252), (662, 30446380), (1060, 19014626), (1324, 15223190), (1655, 12178552), (2120, 9507313), (2648, 7611595), (3310, 6089276), (6620, 3044638), (13240, 1522319), (17543, 1148920), (28723, 701720), (35086, 574460), (57446, 350860), (70172, 287230), (87715, 229784), (114892, 175430), (140344, 143615)]