20193340

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 43797600

約数和(自身を除く): 23604260

約数列:

[1, 2, 4, 5, 10, 20, 59, 109, 118, 157, 218, 236, 295, 314, 436, 545, 590, 628, 785, 1090, 1180, 1570, 2180, 3140, 6431, 9263, 12862, 17113, 18526, 25724, 32155, 34226, 37052, 46315, 64310, 68452, 85565, 92630, 128620, 171130, 185260, 342260, 1009667, 2019334, 4038668, 5048335, 10096670, 20193340]

約数ペア:

[(1, 20193340), (2, 10096670), (4, 5048335), (5, 4038668), (10, 2019334), (20, 1009667), (59, 342260), (109, 185260), (118, 171130), (157, 128620), (218, 92630), (236, 85565), (295, 68452), (314, 64310), (436, 46315), (545, 37052), (590, 34226), (628, 32155), (785, 25724), (1090, 18526), (1180, 17113), (1570, 12862), (2180, 9263), (3140, 6431)]