72905240

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{20479}}^1$

素因数の和:20579

約数の個数: 32

約数和(自身を含む): 165888000

約数和(自身を除く): 92982760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 20479, 40958, 81916, 102395, 163832, 204790, 409580, 819160, 1822631, 3645262, 7290524, 9113155, 14581048, 18226310, 36452620, 72905240]

約数ペア:

[(1, 72905240), (2, 36452620), (4, 18226310), (5, 14581048), (8, 9113155), (10, 7290524), (20, 3645262), (40, 1822631), (89, 819160), (178, 409580), (356, 204790), (445, 163832), (712, 102395), (890, 81916), (1780, 40958), (3560, 20479)]