28939430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 59609088

約数和(自身を除く): 30669658

約数列:

[1, 2, 5, 10, 13, 26, 31, 43, 62, 65, 86, 130, 155, 167, 215, 310, 334, 403, 430, 559, 806, 835, 1118, 1333, 1670, 2015, 2171, 2666, 2795, 4030, 4342, 5177, 5590, 6665, 7181, 10354, 10855, 13330, 14362, 17329, 21710, 25885, 34658, 35905, 51770, 67301, 71810, 86645, 93353, 134602, 173290, 186706, 222611, 336505, 445222, 466765, 673010, 933530, 1113055, 2226110, 2893943, 5787886, 14469715, 28939430]

約数ペア:

[(1, 28939430), (2, 14469715), (5, 5787886), (10, 2893943), (13, 2226110), (26, 1113055), (31, 933530), (43, 673010), (62, 466765), (65, 445222), (86, 336505), (130, 222611), (155, 186706), (167, 173290), (215, 134602), (310, 93353), (334, 86645), (403, 71810), (430, 67301), (559, 51770), (806, 35905), (835, 34658), (1118, 25885), (1333, 21710), (1670, 17329), (2015, 14362), (2171, 13330), (2666, 10855), (2795, 10354), (4030, 7181), (4342, 6665), (5177, 5590)]