19289040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{449}}^1$

素因数の和:644

約数の個数: 80

約数和(自身を含む): 60264000

約数和(自身を除く): 40974960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 179, 240, 358, 449, 537, 716, 895, 898, 1074, 1347, 1432, 1790, 1796, 2148, 2245, 2685, 2694, 2864, 3580, 3592, 4296, 4490, 5370, 5388, 6735, 7160, 7184, 8592, 8980, 10740, 10776, 13470, 14320, 17960, 21480, 21552, 26940, 35920, 42960, 53880, 80371, 107760, 160742, 241113, 321484, 401855, 482226, 642968, 803710, 964452, 1205565, 1285936, 1607420, 1928904, 2411130, 3214840, 3857808, 4822260, 6429680, 9644520, 19289040]

約数ペア:

[(1, 19289040), (2, 9644520), (3, 6429680), (4, 4822260), (5, 3857808), (6, 3214840), (8, 2411130), (10, 1928904), (12, 1607420), (15, 1285936), (16, 1205565), (20, 964452), (24, 803710), (30, 642968), (40, 482226), (48, 401855), (60, 321484), (80, 241113), (120, 160742), (179, 107760), (240, 80371), (358, 53880), (449, 42960), (537, 35920), (716, 26940), (895, 21552), (898, 21480), (1074, 17960), (1347, 14320), (1432, 13470), (1790, 10776), (1796, 10740), (2148, 8980), (2245, 8592), (2685, 7184), (2694, 7160), (2864, 6735), (3580, 5388), (3592, 5370), (4296, 4490)]