15282820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{631}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 36949248

約数和(自身を除く): 21666428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 173, 346, 631, 692, 865, 1211, 1262, 1730, 2422, 2524, 3155, 3460, 4417, 4844, 6055, 6310, 8834, 12110, 12620, 17668, 22085, 24220, 44170, 88340, 109163, 218326, 436652, 545815, 764141, 1091630, 1528282, 2183260, 3056564, 3820705, 7641410, 15282820]

約数ペア:

[(1, 15282820), (2, 7641410), (4, 3820705), (5, 3056564), (7, 2183260), (10, 1528282), (14, 1091630), (20, 764141), (28, 545815), (35, 436652), (70, 218326), (140, 109163), (173, 88340), (346, 44170), (631, 24220), (692, 22085), (865, 17668), (1211, 12620), (1262, 12110), (1730, 8834), (2422, 6310), (2524, 6055), (3155, 4844), (3460, 4417)]