19737220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{401}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 43763328

約数和(自身を除く): 24026108

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 107, 115, 214, 230, 401, 428, 460, 535, 802, 1070, 1604, 2005, 2140, 2461, 4010, 4922, 8020, 9223, 9844, 12305, 18446, 24610, 36892, 42907, 46115, 49220, 85814, 92230, 171628, 184460, 214535, 429070, 858140, 986861, 1973722, 3947444, 4934305, 9868610, 19737220]

約数ペア:

[(1, 19737220), (2, 9868610), (4, 4934305), (5, 3947444), (10, 1973722), (20, 986861), (23, 858140), (46, 429070), (92, 214535), (107, 184460), (115, 171628), (214, 92230), (230, 85814), (401, 49220), (428, 46115), (460, 42907), (535, 36892), (802, 24610), (1070, 18446), (1604, 12305), (2005, 9844), (2140, 9223), (2461, 8020), (4010, 4922)]