260985280

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26309}}^1$

素因数の和:26357

約数の個数: 56

約数和(自身を含む): 641543040

約数和(自身を除く): 380557760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 26309, 52618, 105236, 131545, 210472, 263090, 420944, 526180, 815579, 841888, 1052360, 1631158, 1683776, 2104720, 3262316, 4077895, 4209440, 6524632, 8155790, 8418880, 13049264, 16311580, 26098528, 32623160, 52197056, 65246320, 130492640, 260985280]

約数ペア:

[(1, 260985280), (2, 130492640), (4, 65246320), (5, 52197056), (8, 32623160), (10, 26098528), (16, 16311580), (20, 13049264), (31, 8418880), (32, 8155790), (40, 6524632), (62, 4209440), (64, 4077895), (80, 3262316), (124, 2104720), (155, 1683776), (160, 1631158), (248, 1052360), (310, 841888), (320, 815579), (496, 526180), (620, 420944), (992, 263090), (1240, 210472), (1984, 131545), (2480, 105236), (4960, 52618), (9920, 26309)]