28559990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{509}}^1$

素因数の和:728

約数の個数: 32

約数和(自身を含む): 53464320

約数和(自身を除く): 24904330

約数列:

[1, 2, 5, 10, 31, 62, 155, 181, 310, 362, 509, 905, 1018, 1810, 2545, 5090, 5611, 11222, 15779, 28055, 31558, 56110, 78895, 92129, 157790, 184258, 460645, 921290, 2855999, 5711998, 14279995, 28559990]

約数ペア:

[(1, 28559990), (2, 14279995), (5, 5711998), (10, 2855999), (31, 921290), (62, 460645), (155, 184258), (181, 157790), (310, 92129), (362, 78895), (509, 56110), (905, 31558), (1018, 28055), (1810, 15779), (2545, 11222), (5090, 5611)]