80981460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{64271}}^1$

素因数の和:64293

約数の個数: 72

約数和(自身を含む): 280740096

約数和(自身を除く): 199758636

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 64271, 128542, 192813, 257084, 321355, 385626, 449897, 578439, 642710, 771252, 899794, 964065, 1156878, 1285420, 1349691, 1799588, 1928130, 2249485, 2313756, 2699382, 2892195, 3856260, 4049073, 4498970, 5398764, 5784390, 6748455, 8098146, 8997940, 11568780, 13496910, 16196292, 20245365, 26993820, 40490730, 80981460]

約数ペア:

[(1, 80981460), (2, 40490730), (3, 26993820), (4, 20245365), (5, 16196292), (6, 13496910), (7, 11568780), (9, 8997940), (10, 8098146), (12, 6748455), (14, 5784390), (15, 5398764), (18, 4498970), (20, 4049073), (21, 3856260), (28, 2892195), (30, 2699382), (35, 2313756), (36, 2249485), (42, 1928130), (45, 1799588), (60, 1349691), (63, 1285420), (70, 1156878), (84, 964065), (90, 899794), (105, 771252), (126, 642710), (140, 578439), (180, 449897), (210, 385626), (252, 321355), (315, 257084), (420, 192813), (630, 128542), (1260, 64271)]