72660520

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{6703}}^1$

素因数の和:6985

約数の個数: 32

約数和(自身を含む): 164113920

約数和(自身を除く): 91453400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 6703, 10840, 13406, 26812, 33515, 53624, 67030, 134060, 268120, 1816513, 3633026, 7266052, 9082565, 14532104, 18165130, 36330260, 72660520]

約数ペア:

[(1, 72660520), (2, 36330260), (4, 18165130), (5, 14532104), (8, 9082565), (10, 7266052), (20, 3633026), (40, 1816513), (271, 268120), (542, 134060), (1084, 67030), (1355, 53624), (2168, 33515), (2710, 26812), (5420, 13406), (6703, 10840)]