156981520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{63299}}^1$

素因数の和:63343

約数の個数: 40

約数和(自身を含む): 376761600

約数和(自身を除く): 219780080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 63299, 126598, 253196, 316495, 506392, 632990, 1012784, 1265980, 1962269, 2531960, 3924538, 5063920, 7849076, 9811345, 15698152, 19622690, 31396304, 39245380, 78490760, 156981520]

約数ペア:

[(1, 156981520), (2, 78490760), (4, 39245380), (5, 31396304), (8, 19622690), (10, 15698152), (16, 9811345), (20, 7849076), (31, 5063920), (40, 3924538), (62, 2531960), (80, 1962269), (124, 1265980), (155, 1012784), (248, 632990), (310, 506392), (496, 316495), (620, 253196), (1240, 126598), (2480, 63299)]