18441760

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1459}}^1$

素因数の和:1553

約数の個数: 48

約数和(自身を含む): 44150400

約数和(自身を除く): 25708640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1459, 1580, 2528, 2918, 3160, 5836, 6320, 7295, 11672, 12640, 14590, 23344, 29180, 46688, 58360, 115261, 116720, 230522, 233440, 461044, 576305, 922088, 1152610, 1844176, 2305220, 3688352, 4610440, 9220880, 18441760]

約数ペア:

[(1, 18441760), (2, 9220880), (4, 4610440), (5, 3688352), (8, 2305220), (10, 1844176), (16, 1152610), (20, 922088), (32, 576305), (40, 461044), (79, 233440), (80, 230522), (158, 116720), (160, 115261), (316, 58360), (395, 46688), (632, 29180), (790, 23344), (1264, 14590), (1459, 12640), (1580, 11672), (2528, 7295), (2918, 6320), (3160, 5836)]