38837840

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1889}}^1$

素因数の和:2159

約数の個数: 40

約数和(自身を含む): 90697320

約数和(自身を除く): 51859480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 1889, 2056, 2570, 3778, 4112, 5140, 7556, 9445, 10280, 15112, 18890, 20560, 30224, 37780, 75560, 151120, 485473, 970946, 1941892, 2427365, 3883784, 4854730, 7767568, 9709460, 19418920, 38837840]

約数ペア:

[(1, 38837840), (2, 19418920), (4, 9709460), (5, 7767568), (8, 4854730), (10, 3883784), (16, 2427365), (20, 1941892), (40, 970946), (80, 485473), (257, 151120), (514, 75560), (1028, 37780), (1285, 30224), (1889, 20560), (2056, 18890), (2570, 15112), (3778, 10280), (4112, 9445), (5140, 7556)]