90944420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1543}}^1$

素因数の和:1980

約数の個数: 48

約数和(自身を含む): 218926848

約数和(自身を除く): 127982428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 421, 842, 1543, 1684, 2105, 2947, 3086, 4210, 5894, 6172, 7715, 8420, 10801, 11788, 14735, 15430, 21602, 29470, 30860, 43204, 54005, 58940, 108010, 216020, 649603, 1299206, 2598412, 3248015, 4547221, 6496030, 9094442, 12992060, 18188884, 22736105, 45472210, 90944420]

約数ペア:

[(1, 90944420), (2, 45472210), (4, 22736105), (5, 18188884), (7, 12992060), (10, 9094442), (14, 6496030), (20, 4547221), (28, 3248015), (35, 2598412), (70, 1299206), (140, 649603), (421, 216020), (842, 108010), (1543, 58940), (1684, 54005), (2105, 43204), (2947, 30860), (3086, 29470), (4210, 21602), (5894, 15430), (6172, 14735), (7715, 11788), (8420, 10801)]