1649940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 4681152

約数和(自身を除く): 3031212

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 107, 214, 257, 321, 428, 514, 535, 642, 771, 1028, 1070, 1284, 1285, 1542, 1605, 2140, 2570, 3084, 3210, 3855, 5140, 6420, 7710, 15420, 27499, 54998, 82497, 109996, 137495, 164994, 274990, 329988, 412485, 549980, 824970, 1649940]

約数ペア:

[(1, 1649940), (2, 824970), (3, 549980), (4, 412485), (5, 329988), (6, 274990), (10, 164994), (12, 137495), (15, 109996), (20, 82497), (30, 54998), (60, 27499), (107, 15420), (214, 7710), (257, 6420), (321, 5140), (428, 3855), (514, 3210), (535, 3084), (642, 2570), (771, 2140), (1028, 1605), (1070, 1542), (1284, 1285)]