18243550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:182

約数の個数: 72

約数和(自身を含む): 39211776

約数和(自身を除く): 20968226

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 127, 130, 169, 170, 221, 254, 325, 338, 425, 442, 635, 650, 845, 850, 1105, 1270, 1651, 1690, 2159, 2210, 2873, 3175, 3302, 4225, 4318, 5525, 5746, 6350, 8255, 8450, 10795, 11050, 14365, 16510, 21463, 21590, 28067, 28730, 41275, 42926, 53975, 56134, 71825, 82550, 107315, 107950, 140335, 143650, 214630, 280670, 364871, 536575, 701675, 729742, 1073150, 1403350, 1824355, 3648710, 9121775, 18243550]

約数ペア:

[(1, 18243550), (2, 9121775), (5, 3648710), (10, 1824355), (13, 1403350), (17, 1073150), (25, 729742), (26, 701675), (34, 536575), (50, 364871), (65, 280670), (85, 214630), (127, 143650), (130, 140335), (169, 107950), (170, 107315), (221, 82550), (254, 71825), (325, 56134), (338, 53975), (425, 42926), (442, 41275), (635, 28730), (650, 28067), (845, 21590), (850, 21463), (1105, 16510), (1270, 14365), (1651, 11050), (1690, 10795), (2159, 8450), (2210, 8255), (2873, 6350), (3175, 5746), (3302, 5525), (4225, 4318)]