20461154240

素因数分解:

$2^6\times 5^1\times {\mathrm{653}}^1\times {\mathrm{97919}}^1$

素因数の和:98589

約数の個数: 56

約数和(自身を含む): 48798236160

約数和(自身を除く): 28337081920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 653, 1306, 2612, 3265, 5224, 6530, 10448, 13060, 20896, 26120, 41792, 52240, 97919, 104480, 195838, 208960, 391676, 489595, 783352, 979190, 1566704, 1958380, 3133408, 3916760, 6266816, 7833520, 15667040, 31334080, 63941107, 127882214, 255764428, 319705535, 511528856, 639411070, 1023057712, 1278822140, 2046115424, 2557644280, 4092230848, 5115288560, 10230577120, 20461154240]

約数ペア:

[(1, 20461154240), (2, 10230577120), (4, 5115288560), (5, 4092230848), (8, 2557644280), (10, 2046115424), (16, 1278822140), (20, 1023057712), (32, 639411070), (40, 511528856), (64, 319705535), (80, 255764428), (160, 127882214), (320, 63941107), (653, 31334080), (1306, 15667040), (2612, 7833520), (3265, 6266816), (5224, 3916760), (6530, 3133408), (10448, 1958380), (13060, 1566704), (20896, 979190), (26120, 783352), (41792, 489595), (52240, 391676), (97919, 208960), (104480, 195838)]