27772900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^2\times {\mathrm{31}}^2$

素因数の和:110

約数の個数: 81

約数和(自身を含む): 66152667

約数和(自身を除く): 38379767

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 31, 34, 50, 62, 68, 85, 100, 124, 155, 170, 289, 310, 340, 425, 527, 578, 620, 775, 850, 961, 1054, 1156, 1445, 1550, 1700, 1922, 2108, 2635, 2890, 3100, 3844, 4805, 5270, 5780, 7225, 8959, 9610, 10540, 13175, 14450, 16337, 17918, 19220, 24025, 26350, 28900, 32674, 35836, 44795, 48050, 52700, 65348, 81685, 89590, 96100, 163370, 179180, 223975, 277729, 326740, 408425, 447950, 555458, 816850, 895900, 1110916, 1388645, 1633700, 2777290, 5554580, 6943225, 13886450, 27772900]

約数ペア:

[(1, 27772900), (2, 13886450), (4, 6943225), (5, 5554580), (10, 2777290), (17, 1633700), (20, 1388645), (25, 1110916), (31, 895900), (34, 816850), (50, 555458), (62, 447950), (68, 408425), (85, 326740), (100, 277729), (124, 223975), (155, 179180), (170, 163370), (289, 96100), (310, 89590), (340, 81685), (425, 65348), (527, 52700), (578, 48050), (620, 44795), (775, 35836), (850, 32674), (961, 28900), (1054, 26350), (1156, 24025), (1445, 19220), (1550, 17918), (1700, 16337), (1922, 14450), (2108, 13175), (2635, 10540), (2890, 9610), (3100, 8959), (3844, 7225), (4805, 5780)]