123789780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{687721}}^1$

素因数の和:687736

約数の個数: 36

約数和(自身を含む): 375496212

約数和(自身を除く): 251706432

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 687721, 1375442, 2063163, 2750884, 3438605, 4126326, 6189489, 6877210, 8252652, 10315815, 12378978, 13754420, 20631630, 24757956, 30947445, 41263260, 61894890, 123789780]

約数ペア:

[(1, 123789780), (2, 61894890), (3, 41263260), (4, 30947445), (5, 24757956), (6, 20631630), (9, 13754420), (10, 12378978), (12, 10315815), (15, 8252652), (18, 6877210), (20, 6189489), (30, 4126326), (36, 3438605), (45, 2750884), (60, 2063163), (90, 1375442), (180, 687721)]