221580920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{503593}}^1$

素因数の和:503615

約数の個数: 32

約数和(自身を含む): 543881520

約数和(自身を除く): 322300600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 503593, 1007186, 2014372, 2517965, 4028744, 5035930, 5539523, 10071860, 11079046, 20143720, 22158092, 27697615, 44316184, 55395230, 110790460, 221580920]

約数ペア:

[(1, 221580920), (2, 110790460), (4, 55395230), (5, 44316184), (8, 27697615), (10, 22158092), (11, 20143720), (20, 11079046), (22, 10071860), (40, 5539523), (44, 5035930), (55, 4028744), (88, 2517965), (110, 2014372), (220, 1007186), (440, 503593)]