87819260

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71983}}^1$

素因数の和:72053

約数の個数: 24

約数和(自身を含む): 187446336

約数和(自身を除く): 99627076

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 71983, 143966, 287932, 359915, 719830, 1439660, 4390963, 8781926, 17563852, 21954815, 43909630, 87819260]

約数ペア:

[(1, 87819260), (2, 43909630), (4, 21954815), (5, 17563852), (10, 8781926), (20, 4390963), (61, 1439660), (122, 719830), (244, 359915), (305, 287932), (610, 143966), (1220, 71983)]