97989220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{99989}}^1$

素因数の和:100012

約数の個数: 36

約数和(自身を含む): 239376060

約数和(自身を除く): 141386840

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 99989, 199978, 399956, 499945, 699923, 999890, 1399846, 1999780, 2799692, 3499615, 4899461, 6999230, 9798922, 13998460, 19597844, 24497305, 48994610, 97989220]

約数ペア:

[(1, 97989220), (2, 48994610), (4, 24497305), (5, 19597844), (7, 13998460), (10, 9798922), (14, 6999230), (20, 4899461), (28, 3499615), (35, 2799692), (49, 1999780), (70, 1399846), (98, 999890), (140, 699923), (196, 499945), (245, 399956), (490, 199978), (980, 99989)]