28869140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{647}}^1$

素因数の和:776

約数の個数: 48

約数和(自身を含む): 64012032

約数和(自身を除く): 35142892

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 97, 115, 194, 230, 388, 460, 485, 647, 970, 1294, 1940, 2231, 2588, 3235, 4462, 6470, 8924, 11155, 12940, 14881, 22310, 29762, 44620, 59524, 62759, 74405, 125518, 148810, 251036, 297620, 313795, 627590, 1255180, 1443457, 2886914, 5773828, 7217285, 14434570, 28869140]

約数ペア:

[(1, 28869140), (2, 14434570), (4, 7217285), (5, 5773828), (10, 2886914), (20, 1443457), (23, 1255180), (46, 627590), (92, 313795), (97, 297620), (115, 251036), (194, 148810), (230, 125518), (388, 74405), (460, 62759), (485, 59524), (647, 44620), (970, 29762), (1294, 22310), (1940, 14881), (2231, 12940), (2588, 11155), (3235, 8924), (4462, 6470)]