1641990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{1117}}^1$

素因数の和:1141

約数の個数: 48

約数和(自身を含む): 4588272

約数和(自身を除く): 2946282

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1117, 1470, 2234, 3351, 5585, 6702, 7819, 11170, 15638, 16755, 23457, 33510, 39095, 46914, 54733, 78190, 109466, 117285, 164199, 234570, 273665, 328398, 547330, 820995, 1641990]

約数ペア:

[(1, 1641990), (2, 820995), (3, 547330), (5, 328398), (6, 273665), (7, 234570), (10, 164199), (14, 117285), (15, 109466), (21, 78190), (30, 54733), (35, 46914), (42, 39095), (49, 33510), (70, 23457), (98, 16755), (105, 15638), (147, 11170), (210, 7819), (245, 6702), (294, 5585), (490, 3351), (735, 2234), (1117, 1470)]