158221520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{63799}}^1$

素因数の和:63843

約数の個数: 40

約数和(自身を含む): 379737600

約数和(自身を除く): 221516080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 63799, 127598, 255196, 318995, 510392, 637990, 1020784, 1275980, 1977769, 2551960, 3955538, 5103920, 7911076, 9888845, 15822152, 19777690, 31644304, 39555380, 79110760, 158221520]

約数ペア:

[(1, 158221520), (2, 79110760), (4, 39555380), (5, 31644304), (8, 19777690), (10, 15822152), (16, 9888845), (20, 7911076), (31, 5103920), (40, 3955538), (62, 2551960), (80, 1977769), (124, 1275980), (155, 1020784), (248, 637990), (310, 510392), (496, 318995), (620, 255196), (1240, 127598), (2480, 63799)]