15030320

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2111}}^1$

素因数の和:2213

約数の個数: 40

約数和(自身を含む): 35354880

約数和(自身を除く): 20324560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 2111, 3560, 4222, 7120, 8444, 10555, 16888, 21110, 33776, 42220, 84440, 168880, 187879, 375758, 751516, 939395, 1503032, 1878790, 3006064, 3757580, 7515160, 15030320]

約数ペア:

[(1, 15030320), (2, 7515160), (4, 3757580), (5, 3006064), (8, 1878790), (10, 1503032), (16, 939395), (20, 751516), (40, 375758), (80, 187879), (89, 168880), (178, 84440), (356, 42220), (445, 33776), (712, 21110), (890, 16888), (1424, 10555), (1780, 8444), (2111, 7120), (3560, 4222)]