202345420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{919}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 433540800

約数和(自身を除く): 231195380

約数列:

[1, 2, 4, 5, 10, 20, 101, 109, 202, 218, 404, 436, 505, 545, 919, 1010, 1090, 1838, 2020, 2180, 3676, 4595, 9190, 11009, 18380, 22018, 44036, 55045, 92819, 100171, 110090, 185638, 200342, 220180, 371276, 400684, 464095, 500855, 928190, 1001710, 1856380, 2003420, 10117271, 20234542, 40469084, 50586355, 101172710, 202345420]

約数ペア:

[(1, 202345420), (2, 101172710), (4, 50586355), (5, 40469084), (10, 20234542), (20, 10117271), (101, 2003420), (109, 1856380), (202, 1001710), (218, 928190), (404, 500855), (436, 464095), (505, 400684), (545, 371276), (919, 220180), (1010, 200342), (1090, 185638), (1838, 110090), (2020, 100171), (2180, 92819), (3676, 55045), (4595, 44036), (9190, 22018), (11009, 18380)]