15888280

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4463}}^1$

素因数の和:4563

約数の個数: 32

約数和(自身を含む): 36158400

約数和(自身を除く): 20270120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 4463, 8926, 17852, 22315, 35704, 44630, 89260, 178520, 397207, 794414, 1588828, 1986035, 3177656, 3972070, 7944140, 15888280]

約数ペア:

[(1, 15888280), (2, 7944140), (4, 3972070), (5, 3177656), (8, 1986035), (10, 1588828), (20, 794414), (40, 397207), (89, 178520), (178, 89260), (356, 44630), (445, 35704), (712, 22315), (890, 17852), (1780, 8926), (3560, 4463)]