1721053820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{266417}}^1$

素因数の和:266462

約数の個数: 48

約数和(自身を含む): 4028240160

約数和(自身を除く): 2307186340

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 6460, 266417, 532834, 1065668, 1332085, 2664170, 4529089, 5061923, 5328340, 9058178, 10123846, 18116356, 20247692, 22645445, 25309615, 45290890, 50619230, 86052691, 90581780, 101238460, 172105382, 344210764, 430263455, 860526910, 1721053820]

約数ペア:

[(1, 1721053820), (2, 860526910), (4, 430263455), (5, 344210764), (10, 172105382), (17, 101238460), (19, 90581780), (20, 86052691), (34, 50619230), (38, 45290890), (68, 25309615), (76, 22645445), (85, 20247692), (95, 18116356), (170, 10123846), (190, 9058178), (323, 5328340), (340, 5061923), (380, 4529089), (646, 2664170), (1292, 1332085), (1615, 1065668), (3230, 532834), (6460, 266417)]