97777900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{863}}^1$

素因数の和:991

約数の個数: 72

約数和(自身を含む): 233985024

約数和(自身を除く): 136207124

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 103, 110, 206, 220, 275, 412, 515, 550, 863, 1030, 1100, 1133, 1726, 2060, 2266, 2575, 3452, 4315, 4532, 5150, 5665, 8630, 9493, 10300, 11330, 17260, 18986, 21575, 22660, 28325, 37972, 43150, 47465, 56650, 86300, 88889, 94930, 113300, 177778, 189860, 237325, 355556, 444445, 474650, 888890, 949300, 977779, 1777780, 1955558, 2222225, 3911116, 4444450, 4888895, 8888900, 9777790, 19555580, 24444475, 48888950, 97777900]

約数ペア:

[(1, 97777900), (2, 48888950), (4, 24444475), (5, 19555580), (10, 9777790), (11, 8888900), (20, 4888895), (22, 4444450), (25, 3911116), (44, 2222225), (50, 1955558), (55, 1777780), (100, 977779), (103, 949300), (110, 888890), (206, 474650), (220, 444445), (275, 355556), (412, 237325), (515, 189860), (550, 177778), (863, 113300), (1030, 94930), (1100, 88889), (1133, 86300), (1726, 56650), (2060, 47465), (2266, 43150), (2575, 37972), (3452, 28325), (4315, 22660), (4532, 21575), (5150, 18986), (5665, 17260), (8630, 11330), (9493, 10300)]