261029720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{433}}^1\times {\mathrm{2153}}^1$

素因数の和:2604

約数の個数: 64

約数和(自身を含む): 673081920

約数和(自身を除く): 412052200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 433, 866, 1732, 2153, 2165, 3031, 3464, 4306, 4330, 6062, 8612, 8660, 10765, 12124, 15071, 15155, 17224, 17320, 21530, 24248, 30142, 30310, 43060, 60284, 60620, 75355, 86120, 120568, 121240, 150710, 301420, 602840, 932249, 1864498, 3728996, 4661245, 6525743, 7457992, 9322490, 13051486, 18644980, 26102972, 32628715, 37289960, 52205944, 65257430, 130514860, 261029720]

約数ペア:

[(1, 261029720), (2, 130514860), (4, 65257430), (5, 52205944), (7, 37289960), (8, 32628715), (10, 26102972), (14, 18644980), (20, 13051486), (28, 9322490), (35, 7457992), (40, 6525743), (56, 4661245), (70, 3728996), (140, 1864498), (280, 932249), (433, 602840), (866, 301420), (1732, 150710), (2153, 121240), (2165, 120568), (3031, 86120), (3464, 75355), (4306, 60620), (4330, 60284), (6062, 43060), (8612, 30310), (8660, 30142), (10765, 24248), (12124, 21530), (15071, 17320), (15155, 17224)]