199894520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{101987}}^1$

素因数の和:102012

約数の個数: 48

約数和(自身を含む): 523198440

約数和(自身を除く): 323303920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 101987, 203974, 407948, 509935, 713909, 815896, 1019870, 1427818, 2039740, 2855636, 3569545, 4079480, 4997363, 5711272, 7139090, 9994726, 14278180, 19989452, 24986815, 28556360, 39978904, 49973630, 99947260, 199894520]

約数ペア:

[(1, 199894520), (2, 99947260), (4, 49973630), (5, 39978904), (7, 28556360), (8, 24986815), (10, 19989452), (14, 14278180), (20, 9994726), (28, 7139090), (35, 5711272), (40, 4997363), (49, 4079480), (56, 3569545), (70, 2855636), (98, 2039740), (140, 1427818), (196, 1019870), (245, 815896), (280, 713909), (392, 509935), (490, 407948), (980, 203974), (1960, 101987)]