2246140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 5207328

約数和(自身を除く): 2961188

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 163, 212, 260, 265, 326, 530, 652, 689, 815, 1060, 1378, 1630, 2119, 2756, 3260, 3445, 4238, 6890, 8476, 8639, 10595, 13780, 17278, 21190, 34556, 42380, 43195, 86390, 112307, 172780, 224614, 449228, 561535, 1123070, 2246140]

約数ペア:

[(1, 2246140), (2, 1123070), (4, 561535), (5, 449228), (10, 224614), (13, 172780), (20, 112307), (26, 86390), (52, 43195), (53, 42380), (65, 34556), (106, 21190), (130, 17278), (163, 13780), (212, 10595), (260, 8639), (265, 8476), (326, 6890), (530, 4238), (652, 3445), (689, 3260), (815, 2756), (1060, 2119), (1378, 1630)]