31655720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 74405520

約数和(自身を除く): 42749800

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 73, 74, 146, 148, 185, 292, 293, 296, 365, 370, 584, 586, 730, 740, 1172, 1460, 1465, 1480, 2344, 2701, 2920, 2930, 5402, 5860, 10804, 10841, 11720, 13505, 21389, 21608, 21682, 27010, 42778, 43364, 54020, 54205, 85556, 86728, 106945, 108040, 108410, 171112, 213890, 216820, 427780, 433640, 791393, 855560, 1582786, 3165572, 3956965, 6331144, 7913930, 15827860, 31655720]

約数ペア:

[(1, 31655720), (2, 15827860), (4, 7913930), (5, 6331144), (8, 3956965), (10, 3165572), (20, 1582786), (37, 855560), (40, 791393), (73, 433640), (74, 427780), (146, 216820), (148, 213890), (185, 171112), (292, 108410), (293, 108040), (296, 106945), (365, 86728), (370, 85556), (584, 54205), (586, 54020), (730, 43364), (740, 42778), (1172, 27010), (1460, 21682), (1465, 21608), (1480, 21389), (2344, 13505), (2701, 11720), (2920, 10841), (2930, 10804), (5402, 5860)]