20974260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20563}}^1$

素因数の和:20592

約数の個数: 48

約数和(自身を含む): 62185536

約数和(自身を除く): 41211276

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 20563, 41126, 61689, 82252, 102815, 123378, 205630, 246756, 308445, 349571, 411260, 616890, 699142, 1048713, 1233780, 1398284, 1747855, 2097426, 3495710, 4194852, 5243565, 6991420, 10487130, 20974260]

約数ペア:

[(1, 20974260), (2, 10487130), (3, 6991420), (4, 5243565), (5, 4194852), (6, 3495710), (10, 2097426), (12, 1747855), (15, 1398284), (17, 1233780), (20, 1048713), (30, 699142), (34, 616890), (51, 411260), (60, 349571), (68, 308445), (85, 246756), (102, 205630), (170, 123378), (204, 102815), (255, 82252), (340, 61689), (510, 41126), (1020, 20563)]