519887380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1\times {\mathrm{1597}}^1$

素因数の和:2044

約数の個数: 48

約数和(自身を含む): 1121911056

約数和(自身を除く): 602023676

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 397, 410, 794, 820, 1588, 1597, 1985, 3194, 3970, 6388, 7940, 7985, 15970, 16277, 31940, 32554, 65108, 65477, 81385, 130954, 162770, 261908, 325540, 327385, 634009, 654770, 1268018, 1309540, 2536036, 3170045, 6340090, 12680180, 25994369, 51988738, 103977476, 129971845, 259943690, 519887380]

約数ペア:

[(1, 519887380), (2, 259943690), (4, 129971845), (5, 103977476), (10, 51988738), (20, 25994369), (41, 12680180), (82, 6340090), (164, 3170045), (205, 2536036), (397, 1309540), (410, 1268018), (794, 654770), (820, 634009), (1588, 327385), (1597, 325540), (1985, 261908), (3194, 162770), (3970, 130954), (6388, 81385), (7940, 65477), (7985, 65108), (15970, 32554), (16277, 31940)]