200161880

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{19471}}^1$

素因数の和:19739

約数の個数: 32

約数和(自身を含む): 452139840

約数和(自身を除く): 251977960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 19471, 38942, 77884, 97355, 155768, 194710, 389420, 778840, 5004047, 10008094, 20016188, 25020235, 40032376, 50040470, 100080940, 200161880]

約数ペア:

[(1, 200161880), (2, 100080940), (4, 50040470), (5, 40032376), (8, 25020235), (10, 20016188), (20, 10008094), (40, 5004047), (257, 778840), (514, 389420), (1028, 194710), (1285, 155768), (2056, 97355), (2570, 77884), (5140, 38942), (10280, 19471)]