18739520

素因数分解:

$2^6\times 5^1\times {\mathrm{157}}^1\times {\mathrm{373}}^1$

素因数の和:547

約数の個数: 56

約数和(自身を含む): 45028104

約数和(自身を除く): 26288584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 157, 160, 314, 320, 373, 628, 746, 785, 1256, 1492, 1570, 1865, 2512, 2984, 3140, 3730, 5024, 5968, 6280, 7460, 10048, 11936, 12560, 14920, 23872, 25120, 29840, 50240, 58561, 59680, 117122, 119360, 234244, 292805, 468488, 585610, 936976, 1171220, 1873952, 2342440, 3747904, 4684880, 9369760, 18739520]

約数ペア:

[(1, 18739520), (2, 9369760), (4, 4684880), (5, 3747904), (8, 2342440), (10, 1873952), (16, 1171220), (20, 936976), (32, 585610), (40, 468488), (64, 292805), (80, 234244), (157, 119360), (160, 117122), (314, 59680), (320, 58561), (373, 50240), (628, 29840), (746, 25120), (785, 23872), (1256, 14920), (1492, 12560), (1570, 11936), (1865, 10048), (2512, 7460), (2984, 6280), (3140, 5968), (3730, 5024)]