78899940

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{20873}}^1$

素因数の和:20898

約数の個数: 96

約数和(自身を含む): 280546560

約数和(自身を除く): 201646620

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 20873, 41746, 62619, 83492, 104365, 125238, 146111, 187857, 208730, 250476, 292222, 313095, 375714, 417460, 438333, 563571, 584444, 626190, 730555, 751428, 876666, 939285, 1127142, 1252380, 1314999, 1461110, 1753332, 1878570, 2191665, 2254284, 2629998, 2817855, 2922220, 3757140, 3944997, 4383330, 5259996, 5635710, 6574995, 7889994, 8766660, 11271420, 13149990, 15779988, 19724985, 26299980, 39449970, 78899940]

約数ペア:

[(1, 78899940), (2, 39449970), (3, 26299980), (4, 19724985), (5, 15779988), (6, 13149990), (7, 11271420), (9, 8766660), (10, 7889994), (12, 6574995), (14, 5635710), (15, 5259996), (18, 4383330), (20, 3944997), (21, 3757140), (27, 2922220), (28, 2817855), (30, 2629998), (35, 2254284), (36, 2191665), (42, 1878570), (45, 1753332), (54, 1461110), (60, 1314999), (63, 1252380), (70, 1127142), (84, 939285), (90, 876666), (105, 751428), (108, 730555), (126, 626190), (135, 584444), (140, 563571), (180, 438333), (189, 417460), (210, 375714), (252, 313095), (270, 292222), (315, 250476), (378, 208730), (420, 187857), (540, 146111), (630, 125238), (756, 104365), (945, 83492), (1260, 62619), (1890, 41746), (3780, 20873)]