8889011890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{321949}}^1$

素因数の和:322218

約数の個数: 32

約数和(自身を含む): 17524382400

約数和(自身を除く): 8635370510

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 251, 502, 1255, 2510, 2761, 5522, 13805, 27610, 321949, 643898, 1609745, 3219490, 3541439, 7082878, 17707195, 35414390, 80809199, 161618398, 404045995, 808091990, 888901189, 1777802378, 4444505945, 8889011890]

約数ペア:

[(1, 8889011890), (2, 4444505945), (5, 1777802378), (10, 888901189), (11, 808091990), (22, 404045995), (55, 161618398), (110, 80809199), (251, 35414390), (502, 17707195), (1255, 7082878), (2510, 3541439), (2761, 3219490), (5522, 1609745), (13805, 643898), (27610, 321949)]