17995900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:263

約数の個数: 72

約数和(自身を含む): 42775040

約数和(自身を除く): 24779140

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 109, 127, 130, 218, 254, 260, 325, 436, 508, 545, 635, 650, 1090, 1270, 1300, 1417, 1651, 2180, 2540, 2725, 2834, 3175, 3302, 5450, 5668, 6350, 6604, 7085, 8255, 10900, 12700, 13843, 14170, 16510, 27686, 28340, 33020, 35425, 41275, 55372, 69215, 70850, 82550, 138430, 141700, 165100, 179959, 276860, 346075, 359918, 692150, 719836, 899795, 1384300, 1799590, 3599180, 4498975, 8997950, 17995900]

約数ペア:

[(1, 17995900), (2, 8997950), (4, 4498975), (5, 3599180), (10, 1799590), (13, 1384300), (20, 899795), (25, 719836), (26, 692150), (50, 359918), (52, 346075), (65, 276860), (100, 179959), (109, 165100), (127, 141700), (130, 138430), (218, 82550), (254, 70850), (260, 69215), (325, 55372), (436, 41275), (508, 35425), (545, 33020), (635, 28340), (650, 27686), (1090, 16510), (1270, 14170), (1300, 13843), (1417, 12700), (1651, 10900), (2180, 8255), (2540, 7085), (2725, 6604), (2834, 6350), (3175, 5668), (3302, 5450)]