72012420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{400069}}^1$

素因数の和:400084

約数の個数: 36

約数和(自身を含む): 218438220

約数和(自身を除く): 146425800

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 400069, 800138, 1200207, 1600276, 2000345, 2400414, 3600621, 4000690, 4800828, 6001035, 7201242, 8001380, 12002070, 14402484, 18003105, 24004140, 36006210, 72012420]

約数ペア:

[(1, 72012420), (2, 36006210), (3, 24004140), (4, 18003105), (5, 14402484), (6, 12002070), (9, 8001380), (10, 7201242), (12, 6001035), (15, 4800828), (18, 4000690), (20, 3600621), (30, 2400414), (36, 2000345), (45, 1600276), (60, 1200207), (90, 800138), (180, 400069)]