2172710980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{75389}}^1$

素因数の和:75540

約数の個数: 48

約数和(自身を含む): 5015545920

約数和(自身を除く): 2842834940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 131, 220, 262, 524, 655, 1310, 1441, 2620, 2882, 5764, 7205, 14410, 28820, 75389, 150778, 301556, 376945, 753890, 829279, 1507780, 1658558, 3317116, 4146395, 8292790, 9875959, 16585580, 19751918, 39503836, 49379795, 98759590, 108635549, 197519180, 217271098, 434542196, 543177745, 1086355490, 2172710980]

約数ペア:

[(1, 2172710980), (2, 1086355490), (4, 543177745), (5, 434542196), (10, 217271098), (11, 197519180), (20, 108635549), (22, 98759590), (44, 49379795), (55, 39503836), (110, 19751918), (131, 16585580), (220, 9875959), (262, 8292790), (524, 4146395), (655, 3317116), (1310, 1658558), (1441, 1507780), (2620, 829279), (2882, 753890), (5764, 376945), (7205, 301556), (14410, 150778), (28820, 75389)]