78865120

素因数分解:

$2^5\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1373}}^1$

素因数の和:1747

約数の個数: 48

約数和(自身を含む): 186973920

約数和(自身を除く): 108108800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 359, 718, 1373, 1436, 1795, 2746, 2872, 3590, 5492, 5744, 6865, 7180, 10984, 11488, 13730, 14360, 21968, 27460, 28720, 43936, 54920, 57440, 109840, 219680, 492907, 985814, 1971628, 2464535, 3943256, 4929070, 7886512, 9858140, 15773024, 19716280, 39432560, 78865120]

約数ペア:

[(1, 78865120), (2, 39432560), (4, 19716280), (5, 15773024), (8, 9858140), (10, 7886512), (16, 4929070), (20, 3943256), (32, 2464535), (40, 1971628), (80, 985814), (160, 492907), (359, 219680), (718, 109840), (1373, 57440), (1436, 54920), (1795, 43936), (2746, 28720), (2872, 27460), (3590, 21968), (5492, 14360), (5744, 13730), (6865, 11488), (7180, 10984)]