201970040

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{30977}}^1$

素因数の和:31151

約数の個数: 32

約数和(自身を含む): 457235280

約数和(自身を除く): 255265240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 30977, 61954, 123908, 154885, 247816, 309770, 619540, 1239080, 5049251, 10098502, 20197004, 25246255, 40394008, 50492510, 100985020, 201970040]

約数ペア:

[(1, 201970040), (2, 100985020), (4, 50492510), (5, 40394008), (8, 25246255), (10, 20197004), (20, 10098502), (40, 5049251), (163, 1239080), (326, 619540), (652, 309770), (815, 247816), (1304, 154885), (1630, 123908), (3260, 61954), (6520, 30977)]