19089040

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6449}}^1$

素因数の和:6499

約数の個数: 40

約数和(自身を含む): 45588600

約数和(自身を除く): 26499560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6449, 12898, 25796, 32245, 51592, 64490, 103184, 128980, 238613, 257960, 477226, 515920, 954452, 1193065, 1908904, 2386130, 3817808, 4772260, 9544520, 19089040]

約数ペア:

[(1, 19089040), (2, 9544520), (4, 4772260), (5, 3817808), (8, 2386130), (10, 1908904), (16, 1193065), (20, 954452), (37, 515920), (40, 477226), (74, 257960), (80, 238613), (148, 128980), (185, 103184), (296, 64490), (370, 51592), (592, 32245), (740, 25796), (1480, 12898), (2960, 6449)]