2823788440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{72109}}^1$

素因数の和:72220

約数の個数: 64

約数和(自身を含む): 7009092000

約数和(自身を除く): 4185303560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 89, 110, 178, 220, 356, 440, 445, 712, 890, 979, 1780, 1958, 3560, 3916, 4895, 7832, 9790, 19580, 39160, 72109, 144218, 288436, 360545, 576872, 721090, 793199, 1442180, 1586398, 2884360, 3172796, 3965995, 6345592, 6417701, 7931990, 12835402, 15863980, 25670804, 31727960, 32088505, 51341608, 64177010, 70594711, 128354020, 141189422, 256708040, 282378844, 352973555, 564757688, 705947110, 1411894220, 2823788440]

約数ペア:

[(1, 2823788440), (2, 1411894220), (4, 705947110), (5, 564757688), (8, 352973555), (10, 282378844), (11, 256708040), (20, 141189422), (22, 128354020), (40, 70594711), (44, 64177010), (55, 51341608), (88, 32088505), (89, 31727960), (110, 25670804), (178, 15863980), (220, 12835402), (356, 7931990), (440, 6417701), (445, 6345592), (712, 3965995), (890, 3172796), (979, 2884360), (1780, 1586398), (1958, 1442180), (3560, 793199), (3916, 721090), (4895, 576872), (7832, 360545), (9790, 288436), (19580, 144218), (39160, 72109)]