20006048

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:385

約数の個数: 48

約数和(自身を含む): 41262984

約数和(自身を除く): 21256936

約数列:

[1, 2, 4, 8, 16, 32, 37, 61, 74, 122, 148, 244, 277, 296, 488, 554, 592, 976, 1108, 1184, 1952, 2216, 2257, 4432, 4514, 8864, 9028, 10249, 16897, 18056, 20498, 33794, 36112, 40996, 67588, 72224, 81992, 135176, 163984, 270352, 327968, 540704, 625189, 1250378, 2500756, 5001512, 10003024, 20006048]

約数ペア:

[(1, 20006048), (2, 10003024), (4, 5001512), (8, 2500756), (16, 1250378), (32, 625189), (37, 540704), (61, 327968), (74, 270352), (122, 163984), (148, 135176), (244, 81992), (277, 72224), (296, 67588), (488, 40996), (554, 36112), (592, 33794), (976, 20498), (1108, 18056), (1184, 16897), (1952, 10249), (2216, 9028), (2257, 8864), (4432, 4514)]