2861780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 6713280

約数和(自身を除く): 3851500

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 443, 646, 886, 1292, 1615, 1772, 2215, 3230, 4430, 6460, 7531, 8417, 8860, 15062, 16834, 30124, 33668, 37655, 42085, 75310, 84170, 143089, 150620, 168340, 286178, 572356, 715445, 1430890, 2861780]

約数ペア:

[(1, 2861780), (2, 1430890), (4, 715445), (5, 572356), (10, 286178), (17, 168340), (19, 150620), (20, 143089), (34, 84170), (38, 75310), (68, 42085), (76, 37655), (85, 33668), (95, 30124), (170, 16834), (190, 15062), (323, 8860), (340, 8417), (380, 7531), (443, 6460), (646, 4430), (886, 3230), (1292, 2215), (1615, 1772)]