16618940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1559}}^1$

素因数の和:1622

約数の個数: 48

約数和(自身を含む): 38525760

約数和(自身を除く): 21906820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 1559, 2132, 2665, 3118, 5330, 6236, 7795, 10660, 15590, 20267, 31180, 40534, 63919, 81068, 101335, 127838, 202670, 255676, 319595, 405340, 639190, 830947, 1278380, 1661894, 3323788, 4154735, 8309470, 16618940]

約数ペア:

[(1, 16618940), (2, 8309470), (4, 4154735), (5, 3323788), (10, 1661894), (13, 1278380), (20, 830947), (26, 639190), (41, 405340), (52, 319595), (65, 255676), (82, 202670), (130, 127838), (164, 101335), (205, 81068), (260, 63919), (410, 40534), (533, 31180), (820, 20267), (1066, 15590), (1559, 10660), (2132, 7795), (2665, 6236), (3118, 5330)]