65919920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{433}}^1$

素因数の和:630

約数の個数: 80

約数和(自身を含む): 168551712

約数和(自身を除く): 102631792

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 173, 176, 220, 346, 433, 440, 692, 865, 866, 880, 1384, 1730, 1732, 1903, 2165, 2768, 3460, 3464, 3806, 4330, 4763, 6920, 6928, 7612, 8660, 9515, 9526, 13840, 15224, 17320, 19030, 19052, 23815, 30448, 34640, 38060, 38104, 47630, 74909, 76120, 76208, 95260, 149818, 152240, 190520, 299636, 374545, 381040, 599272, 749090, 823999, 1198544, 1498180, 1647998, 2996360, 3295996, 4119995, 5992720, 6591992, 8239990, 13183984, 16479980, 32959960, 65919920]

約数ペア:

[(1, 65919920), (2, 32959960), (4, 16479980), (5, 13183984), (8, 8239990), (10, 6591992), (11, 5992720), (16, 4119995), (20, 3295996), (22, 2996360), (40, 1647998), (44, 1498180), (55, 1198544), (80, 823999), (88, 749090), (110, 599272), (173, 381040), (176, 374545), (220, 299636), (346, 190520), (433, 152240), (440, 149818), (692, 95260), (865, 76208), (866, 76120), (880, 74909), (1384, 47630), (1730, 38104), (1732, 38060), (1903, 34640), (2165, 30448), (2768, 23815), (3460, 19052), (3464, 19030), (3806, 17320), (4330, 15224), (4763, 13840), (6920, 9526), (6928, 9515), (7612, 8660)]