89509090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{26249}}^1$

素因数の和:26298

約数の個数: 32

約数和(自身を含む): 181440000

約数和(自身を除く): 91930910

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 110, 155, 310, 341, 682, 1705, 3410, 26249, 52498, 131245, 262490, 288739, 577478, 813719, 1443695, 1627438, 2887390, 4068595, 8137190, 8950909, 17901818, 44754545, 89509090]

約数ペア:

[(1, 89509090), (2, 44754545), (5, 17901818), (10, 8950909), (11, 8137190), (22, 4068595), (31, 2887390), (55, 1627438), (62, 1443695), (110, 813719), (155, 577478), (310, 288739), (341, 262490), (682, 131245), (1705, 52498), (3410, 26249)]