77882120

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 179625600

約数和(自身を除く): 101743480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 131, 167, 178, 262, 334, 356, 445, 524, 655, 668, 712, 835, 890, 1048, 1310, 1336, 1670, 1780, 2620, 3340, 3560, 5240, 6680, 11659, 14863, 21877, 23318, 29726, 43754, 46636, 58295, 59452, 74315, 87508, 93272, 109385, 116590, 118904, 148630, 175016, 218770, 233180, 297260, 437540, 466360, 594520, 875080, 1947053, 3894106, 7788212, 9735265, 15576424, 19470530, 38941060, 77882120]

約数ペア:

[(1, 77882120), (2, 38941060), (4, 19470530), (5, 15576424), (8, 9735265), (10, 7788212), (20, 3894106), (40, 1947053), (89, 875080), (131, 594520), (167, 466360), (178, 437540), (262, 297260), (334, 233180), (356, 218770), (445, 175016), (524, 148630), (655, 118904), (668, 116590), (712, 109385), (835, 93272), (890, 87508), (1048, 74315), (1310, 59452), (1336, 58295), (1670, 46636), (1780, 43754), (2620, 29726), (3340, 23318), (3560, 21877), (5240, 14863), (6680, 11659)]