128157040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{145633}}^1$

素因数の和:145657

約数の個数: 40

約数和(自身を含む): 325055088

約数和(自身を除く): 196898048

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 145633, 291266, 582532, 728165, 1165064, 1456330, 1601963, 2330128, 2912660, 3203926, 5825320, 6407852, 8009815, 11650640, 12815704, 16019630, 25631408, 32039260, 64078520, 128157040]

約数ペア:

[(1, 128157040), (2, 64078520), (4, 32039260), (5, 25631408), (8, 16019630), (10, 12815704), (11, 11650640), (16, 8009815), (20, 6407852), (22, 5825320), (40, 3203926), (44, 2912660), (55, 2330128), (80, 1601963), (88, 1456330), (110, 1165064), (176, 728165), (220, 582532), (440, 291266), (880, 145633)]